I have recently completed a could transactions with http://www.baseball-cards.com/. I'm not sure how I stumbled across the site but I am glad I did. Not only can you buy cards there but Joe has weekly online auctions and gives away a bunch of free stuff.
This first card is a 1960 Bill Virdon Tag-On. I'm not quite sure how rare it is but I check eBay for Virdon cards every day and I have never seen this listed, nor have I ever seen it for sale on Beckett. It isn't actually a card at all, it is some kind of sticker. You can't tell from the scan but it is actually pretty big. It stands about eight inches tall. It was a pretty good find for me at $4.00.
I picked up the whole team set for a mere $3.00.
These look like 75 Topps in the scan but they are not. These are actually 75 mini cards.