Good luck to you on the Short Sale!!
I'm surprised by the answers. THERE IS A LOT TO BEWARE OF!
Namely, the bank. Are you sure the bank will accept the short sale? Did the listing agent put together the package or the builder himself? Are there any other liens of the property?
Sure you can have it inspected, appraised, poked and prodded, but the difficulties with short sales arises from the uncertainty with dealing with the bank. Their response time is long and usually uncertain, making pinpointing a closing date nearly impossible.
I usually tell my clients, if you can buy anytime between now and 6 months from now, then a short sale might make sense to look at. If you have to move by a specific date, you might want to avoid them.