okay, here's the deal. I have a 15" MacBook Pro (specs in sig) that I bought a couple of months ago that I like to use everyday. however, I've realized that I've only taken the laptop out of my house a whole three times since ownership. now, the new 3GHz iMacs with the 8800 GT video cards has caught my eye in a big way. so here I am debating on whether I should sell my MBP which should easily fetch $2K and use the money towards buying a new 3GHz iMac. so I ask the people in this section of the forum to help me weigh the pros and cons about this idea. do you guys (and gals) think I'd be doing the smart thing or do you think I'd be making a big mistake?