I couldn't finish the table and chairs because I need to borrow a good sander.
tpc,
Have you looked on CraigsList for a used orbital sander? A decent new one is only $75 - $100 or so, but my wife and I found one on CL for $20. It's a DeWalt, and in decent shape. It didn't have the dust bag, but I found one online for like $8, and it all works perfectly. My wife has gotten the refinishing bug, and is doing our game room coffee table, two end tables, and a cheap table we bought at a garage sale for $5, just so she could practice on it. She's wanting to get good enough before she tackles our kitchen table.