
Basically, it's all about choosing iPods, iTunes Gift Cards, as well as iPod accessories, and if you order at least 50 iPods, you will receive free engraving for each player's back panel, or you can choose to pay a one-time setup fee and have all those players with your company's logo on them, instead of custom text.
Obviously, everything comes for special pricing, and if the above it's not enough, you can also choose preloaded custom content for the iPods ($10 per unit for orders of more than 250 iPods), but I think probably two of the best things to choose are the (PRODUCT) RED versions of the iPod nano or shuffle. Anyway, if your budget allows you, you can go as far as purchasing MacBooks or iMacs!
More details about this program can be found on Apple's site, here.