While at Harbor Freight take a look at some of their power sanders and other tools. NOT top quality but you aren't buying them to make your living with. As hobby tools they may well last a lifetime. I bought a 1/4 inch air powered drill there (variable speed and reversable) for work 10+ years ago and it's still working just fine. Cost? $16.00 and that's hard to beat. If it ever quits I can use it as a hammer.