Don't know if you are looking to buy in 2 to 4 weeks or to just start looking, but you might want to give your name to one of the resale brokers and let them know what you're looking for now. Just because you do doesn't mean you have to buy right away. It might just help you determine what's available and at what price.
Sometimes, the really good resales never make it to the websites. Especially the ones with lots of banked points. 'Though there seems to be a ton of resales on there right now - but the high asking prices! (You probably will have better chances of negotiating with the larger supply) You never know how long or short it will take to find one you are happy with. Sometimes you may let a few go by and it may take weeks to find the points you like at the price you like. (Jaki was really nice and she was really good about calling in the evenings when you have the time to talk and think about it with your spouse.)
You might try finding a private seller but if you do, use a closing service company. The extra $ is worth the peace of mind - they will hold your deposit for you in escrow and they also have sample sale contracts that you and the seller can use - just ask. The seller still saves on broker costs.
I learned a lot on this site. You might want to do a search on resales or post your own questions. Be prepared 'cause when you seriously start looking, it either seems to take forever or you have to make a decision in the next 5 minutes!

Also, know that even if you make an offer that is accepted, if you have second thoughts it's not too late. You have about 5-10? days to sign the papers they send you and return them with your deposit. However, I would send it back as quickly as possible if you're sure so that it closes quickly and you can make your ressies! If you do change your mind however or you find something better, let the broker (or seller) know right away so they can find another buyer, they are used to it so don't feel bad. It's only bad if you let them hanging.
Well, that's my 2 cents for now - good luck.
