I just did a huge search for 4 bedroom homes, especially in Windsor Hills. We ended up renting a 6 bed home because our friends decided to join us, but I can tell you that IMHO the 4 bedroom homes are a great value in WH. 3 bedroom townhomes with spalsh pool wil run you $900-1150. All the 4 bed quotes were clustered around the $1200 mark for our week in March 08 (peak season), several at $1100. And then it jumped several hundred dollars to get into a 5 or 6 bedroom (little diff in price b/t those in the quotes I received).
Prices at WH are noticably higher than even at neighboring resorts such as Emerald Island. And prices in the Formosa Gardens area (where WH and EI are located) are higher than other areas. This is due mainly to their prime location relative to the WDW parks.
And if you are willing to go out a couple of miles, well, we had quotes for nice 5 and 6 bedroom homes for $700 for the week...
If you are interested in the WH 4 beds we had on our short list, send me a PM! M<aybe it will save you some time!
Oh, and we also use fabvillas.com, in addition to VRBO and windsorhillsrent. you will find different homes on each site. In fact, we found the home we rented on fabvillas rather than the other two sites, so I am glad we checked all 3.