Before you spend cash on it take it for a test driver also have it inspected by a shop they usually charge $50 bucks or so but its worth it because if they find something wrong you missed with the vehicle then you can use that to bargain down the price :cool:
I was in Car sales for a long time I recommend you make sure it has not had major damage like water damage or anything else run an Autocheck and Carfax on it then if it comes back clean make an offer. Check to see that it was serviced well. Watch out for rust throughs.