Welcome to the DIS!
Renting points, especially Sunday - Thursday, is a great way to save some money. The going rate is about $11 per point and you can stay in a studio in September for about $500 including taxes for 5 days. That's a real bargain! The end of September may be a little hard to get at an Epcot resort becuase the Food and Wine festival starts on 9/29.
Here is the board that covers rentals:
http://www.disboards.com/forumdisplay.php?f=29
I would recommend renting from someone who is either a frequent poster here or someone who can provide references. A lot of people join the DIS just to rent their points and only have a few posts. They may be on the up-and-up, but without a frame of reference you just don't know. Expect to pay 50-100% of the cost of the points upfront with a restricted cancelation policy. The other thing is that you will get no housekeeping services unless you pay extra for it.
Please feel free to PM me if you have any more questions. I have been on both sides of the rental equation.