Good Source For "Bulk" Lincoln Cents?

If you check out my revised want list in my signature, you'll see that I just ordered the four Littleton Lincoln Cent folders for something fun (and relatively cheap) to work on next with my daughter. Heck, I might even be able to get my 3 y/o son hooked by having him help us.

Question for you all: Does anyone know of a good place to purchase either wheat or memorial cents in "bulk" for not too much over face value?

I know someone is going to tell me to pick up memorial rolls from my bank (I'll do that too, although finding older mem's will be more difficult that way). But what about wheats?

Thanks!