I have order from Harbor Frieght, all of the air tools have a 1 year warr. for the little time I will be using them I think they are a great deal here is there web link.
http://www.harborfreight.com/ When you get to the page you will have a pop up, Look at the ad, Tis will be some of there clearence items. I just bought on clearence the following 1/4 die grinder $7.99 with a full set of bits and a cut off tool $12.99 you can't beat them, Next week I will probally order the flange/punch tool $32.99 and the nibbler $29.99.
Makes life a whole lot easier.
Jake