Posted By:
Greg EcklundI'm partial to the 1940 Play Ball set - it's a big set for the time (240 cards) and has interesting and informative backs where you can really learn something about the players. The set is made up of a great majority of current players, but it also has a grouping of some of the greats of early 1900's baseball including Alexander, Johnson, Lajoie, Mathewson, Wagner, etc, so you get a good overview of baseball from 1900-1940.
In mid grade, you can often get the cards for a song on EBay (in my opinion they are one of the best deals still out there). The only cards that will set you back a fair amount of money are the Joe DiMaggio, Ted Williams, and Joe Jackson, but out of 240 cards that isn't too bad a number. The only downside I can see is that the cards are black and white - I don't mind it, but if you're looking for a colorful set Josh's E95 and Goudey suggestions were good ones.