I did not read the thread to see where it has gone, but best buy is offering $100 gift card to best buy when you buy a Mac. So you are not stuck with that $100 "useless" iTunes card and can actually buy something useful.
I love my MBP and if you want to make it really fly, fork out the extra money for the SSD drive. You will probably want the 256GB, so its going to cost quite a bit extra, but IMO its totally worth it if you plan on keeping the computer for a long time. It will be "top of the line" for quite some time with a SSD regardless of what processors do in the next couple of years.
Here is the info on the best buy card. Apparently you have to ask for it cause they are not advertising it.
http://www.macrumors.com/2011/06/19/best-buy-to-match-back-to-school-promo-with-100-store-gift-card/