wow I never thought of buying a shuffle. I love the nano look and I think it would be fine to use for running. (I usually just hold my touch in my hand). Does anyone here run with a nano or shuffle?
Anything is fine for running (especially if you buy the armband). I believe that the shuffle does (did, maybe?) have a clip that you can attach anywhere on a shirt or shorts. I agree, the shuffle is great for working out. You really don't need a screen when working out. When I hit the gym regularly I was not very impressed with the iTouch. Saw people with shuffles, and was jealous. I'd want something I can beat up.
Get shuffle now, save ~100$. Then sell whatever you get with the Back to School Promo, collect rebate, and put it all towards your MacBook. It'll be a nice chunk down :].