I have one, its awesome. Click on my sig to check it out. I think I paid 225$ for it and I dont regret it at all. Depending on the condition of the bike and whether you can fix a few things yourself I wouldnt say you should pay as much as I did. If you dont wrench then it had better be ridable right of the bat in order to buy it.
Take some pics when you check it out and post them up whether you buy it or not.