thats Villette youre looking at. if you book, you might check the link i gave above for additional contact information.
i dont care for that site (or any site that renames the villas and doesnt give many prices) but it does look like it has some villas (of the appropriate size for OP) that i havent seen listed elsewhere.
some other sites >
all properties include local host and daily housekeeping
Chalet Spa (includes butler, chef)
Villazzo (includes transfers, bellstaff at arrival/departure, unpacking)
Homes Away
inclusions/staff varies
Scott Dunn (some with nannies, catering)
Abercrombie & Kent
new from villazzo (no inclusions, weekly housekeeping)
Villazzo V Villas
AMEX partners
http://www.villasofdistinction.com
http://www.lacurevillas.com/
http://www.caribbeanway.com/
http://www.homesaway.com/
http://www.abercrombiekent.co.uk/product/villas/
http://www.beautiful-places.com/
other
http://www.quintessentiallyestates.com/
http://www.mrandmrssmith.com/self-catering
http://www.wimco.com
by owner
http://www.homeaway.com
http://www.vrbo.com