Copying a page from my book (and using the same picture of Aaron Heilman no less), UND.com published an up-to-date list of Notre Dame baseball alumni in affiliated ball.
I like to follow the Irish alums - along with some other local area kids - on FirstInning.com. If you sign up for a free account, you can "track" any player in affiliated baseball, and FirstInning.com will present the previous night's stats for all of your tracked players on one page. Click on a player, and you'll get everything from basic stats to batted ball charts. A very useful site.