For anyone looking to pick up a used motorcycle, this page could be worth a look. Actually it prints out to 26 pages! It's quite thorough, even to the point of questions to ask the previous owner. It's really a fine tooth comb sort of guide. There's nothing for sale here, so I hope it's not against site regulations to post a link to the page. I just found it a helpful resource...

http://www.clarity.net/~adam/buying-bike.html

It already been mentioned, but I will add...please take the Motorcycle Safety Foundation course - even if you've been riding a while...