What was the last version you got?
xposbrad is right, the changes year to year aren't always big, but it does get a little better each year.
I'd say you'll be fine, especially if it's windows 7 64 bit and you've got a decent amount of ram.
Also this year is the first year they have official major league licensing, so you don't have to add the real teams as you would in the past.
By far the best baseball management type game.