Personally if I was looking at a bike that was low maintenance and a lot of fun to ride a singlespeed (and probably a 29er) would be the ticket. For $1500 you could get a very nice bike. Look at a Gary Fisher Rig for example, and you can get one of those for less than $1000. Of course there are a lot of good hardtail geared bikes as well
Check out this link. I would spend your money on this bike without thinking twice:
http://www.mtbr.com/reviews/XC_Hardtail/product_21261.shtml
Have fun searching and ask plenty of questions (for all we know you a looking for a downhill bike) there are plenty of great bikes out there in your price range. If you are looking for a full suspension then maybe consider a single pivot design?
Check out this link. I would spend your money on this bike without thinking twice:
http://www.mtbr.com/reviews/XC_Hardtail/product_21261.shtml
Have fun searching and ask plenty of questions (for all we know you a looking for a downhill bike) there are plenty of great bikes out there in your price range. If you are looking for a full suspension then maybe consider a single pivot design?