How many people are in your party?
If you are looking for a home, Windsor Hills is a beautiful community. vacationcentralflorida.com is where I booked through for our trip earlier this year. They are insanely cheap compared to hotels and the pictures on the site are real. They only require a deposit of $250 per week stayed and that goes towards your stay, it's not a "security deposit" to be refunded after you leave. They have several 2 and 3 BR condos as well as a 3BR Townhome all for the same prices.
We're thinking of going next September as well. Have you ever been there in September? I'm wondering what the weather is like.
Let me know if you have any questions.