Big-spending Toulon have confirmed the summer arrival of two more internationals they continue to strengthen their already impressive squad.

Club owner Mourad Boudjellal has splashed the cash again to bring in France internationals Alexis Palisson from Brive and Sébastien Tillous-Borde from Castres, as well signing Pau prospect Julien Dumora.

The incoming trio will join a start-studded squad that has already been boosted by last week's shock capture of Wales international Gavin Henson.

Top 14 Transfers 2010/11

But it's not been all one-way traffic at the ambitious Cote d'Azur club with two departures also confirmed this week. Utility back and former England international Tom May has signed to play for Aviva premiership side Northampton Saints next season, while injured winger Clément Marienval has agreed terms with Montpellier.

The arrival of Palisson, 23, had been on the cards for many months, with his versatility much admired by Toulon head coach Philippe Saint-André. The Brive player can slot in either at full-back or on the wing, and he has already scored two tries in 12 matches for the French national team.

"He is a flair player, one who can unlock a match with a moment of individual brilliance. He is a star of French rugby," Boudjellal told AFP.

Tillous-Borde, 25, has been signed to replace current scrum-half Pierre Mignoni, who is hanging up his playing boots at the end of this season to become Toulon's backs coach. The incoming No 9 began his professional career at Biarritz before moving on to Castres in 2007. He has eight international caps to his name but has slipped down Marc Lièvremont's pecking order in the past 18 months due to injury and the form of players such Morgan Parra and Dimitri Yachvili.

Top 14 League Table 2010/11

Dumora - who was described as "one for the future" by Boudjellal - is currently plying his trade with ProD2 outfit Pau. The 22-year-old fly-half has made 11 starts for Pau this season, scoring two tries as he continues to understudy the club's South African first choice Andre Hough.

It is significant that the three new Toulon arrivals are all aged 25 or under and French as Saint-André attempts to build a balanced squad of international quality.

The departure of 31-year-old May for Northampton Saints will see the former Newcastle Falcons player return to England after two years at Toulon - where he has been largely used as a squad player to cover for injuries or international absences. May's versatility means he can play virtually anywhere along the back line.

"The experience that my wife and I have had in Toulon was fantastic, but we've been back to England a few times to see family and friends and the opportunity to join Northampton was too good for us to turn down really," explained May.

Toulon, meanwhile, have said that Henson will not play against Brive this weekend, with the recently signed Wales star more likely to debut against SU Agen in Round 19.

Elsewhere in France it is being reported that Heineken Cup champions Stade Toulousain are keen to sign All Black Luke McAlister as a replacement for fly-half David Skrela, who has agreed a three-year deal with Clermont Auvergne.

McAlister has fallen from favour in the All Blacks' packing order since returning to New Zealand for a highly successful stint with Sale Sharks, and he could miss out entirely when his country's World Cup squad is announced. That would make him an enticing prospect for European clubs as he would be available to play when other internationals are away at the 2011 RWC - being held in New Zealand - at the beginning of next season.

The 27-year-old is also thought to attracting the attention of Bath, who are looking for a replacement for the departing Butch James.

McAlister is currently contracted to the New Zealand Rugby Union until 2012, but they are likely to be receptive to the idea of cutting his deal short by 12 months as it would save them money.

Finally, the Zimbabwe newspaper NewsDay is reporting that sevens star Manasah Sita will be trialling with two French sides during the summer with a view to a possible transfer.

Sita currently plays club rugby in Germany but has caught the eye of both Montpellier and Bourgoin due to his performances for the Zimbabwe sevens team.

"Getting this call up for me was a big thing in terms of my rugby because this is all I have been praying and hoping for, to make it into one of the big leagues," he told NewsDay.

If he does secure a deal in France he will become the first Zimbabwean to play in Top 14, although Biarritz do have Zimbabwe-born American international Takudzwa Ngwenya on their books.

Confirmed Transfers For 2011/12

Clermont Auvergne: Lee Byrne (from Ospreys); David Skrela (from Stade Toulousain); Regan King (from Llanelli Scarlets); Gerhard Vosloo (from Brive); Benjamin Kayser (from Castres)

Montpellier: Rémy Martin (from Bayonne), Agustin Creevy (from Clermont Auvergne), Lucas Amorosino (from Leicester Tigers), Yoan Audrin (from Castres), Jean-Baptiste Peyras (from Bayonne), Alex Tulou (Bourgoin), Clément Marienval (from Toulon)

Perpignan: James Hook (from Ospreys)

Stade Francais: Paul Warwick (from Munster)

Stade Toulousain: Timoci Matanavou (from Mont-de-Marsan)

Toulon: Gavin Henson ** (from Saracens), Alexis Palisson (from Brive), Sébastien Tillous-Borde (from Castres), Julien Dumora (from Pau)

Biarritz: Ayoola Erinle, Fabien Alexandre (to Grenoble)

Bourgoin: Alex Tulou (to Montpellier)

Brive: Gerhard Vosloo (to Clermont Auvergne), Alexis Palisson (to Toulon)

Castres: Cameron McIntyre (unknown), Benjamin Kayser (to Clermont Auvergne), Yoan Audrin (to Clermont Auvergne), Sébastien Tillous-Borde (to Toulon)

Clermont Auvergne: Agustin Creevy (to Montpellier)

Stade Toulousain: Byron Kelleher (possibly to Bayonne), David Skrela (to Clermont Auvergne)

Toulon: George Smith (to Suntory, Japan), Tom May (Northampton Saints), Dewald Senekal ** (to SU Agen), Clément Marienval (to Montpellier)

** Gavin Henson joins Toulon with immediate effect, and likewise with Dewald Senekal to SU Agen.