mandy ,
i would echo the above,
you will need to look at your budget because as in uk you will pay more pro rata for renting out a short term or holiday villa over a longer period, especially the summer.
i give you an example that we have looked at property to buy which perhaps rents out by the week at £400-600 per week but currently has a long term renter in paying only 1250 dollars per month.

clearly there is a great difference, but you must remember most weekly rentals will offer a discount on 3 week rentals, but with the weekly rental you pay no other utility bills/poll tax etc(other than pool heat type things), but as with uk everything is down to you on a long term lease.
one final thing to remember is that the villas on this site are well furnished quality accomodation which have been vetted by the forum owners, most of them also come with numerous tv's. dvd pool tables etc etc which you would be hard pushed to find in a long term

pays your money takes your choice but youve landed in the quality zone [8D]

trev( we'll be in hutton overnight 10/7 on our way to gatwickmy parents live there!)