ive had my eyes set on a MBP for some time now, and my little cookie jar is just about filled (good timing too if i say so). but recently, ive been throwing around different specs in different machines on the website (as most first time owners do) over and over again. ive noticed that for the price of the MBP ive built to fill my needs (and wants), i could own a 24" iMac with similar specs (better specs), AND i could throw in an average MB to use to shuffle around (almost for the same price, maybe a handful hundred more). This came to be for the sheer fact that i dont believe i would be doing any heavy graphics or video editing while taking my dog out to the dog park or while im on a trip, so the need for the MBP can be fulfilled with a larger and more powerful desktop unit, still giving me the portability of a laptop when using the MB for whatever other reason i would need. iMac 24" 3.06 and 13" white 2.4 or 15" 2.6 MBP (specs subject to change within a month) any advice on things to think about or look for?