With my first post, I'd like to mention that I'm entirely impressed by the wealth of knowledge users have here and it's been an extremely great resource for me as I plan my next purchase... so thank you. I have the last generation 15" MBP and looking to upgrade to the unibody MBP's. I was originally waiting for the 17" version to be released, but I realize I like the portability of the 15" and it's definitely more conducive to my travel habits. So, I'm looking at the two latest models offered. The breath of activities on my laptop include heavy web browsing, music, photo and video editing. I'm not in the industry, and my editing is done at a pure hobby level, so I don't exactly have hardcore spec needs like some folks here. So, I'm thinking about purchasing the 2.4 and upgrading it OR purchase the 2.53 and avoid the hassles of upgrades. Would love to know your thoughts. It seems like the overall cost would end up around the same price (2.4 w/upgrades vs. base 2.53). I've heard on this forum about the Seagate 500GB @7200 HDD which sounds like a promising HD to wait for. What would be recommendations for upgradable RAM and how much would that typically cost? Also, it seems there is some confusion on how much RAM the 15" can hold, what is the max? Thanks so much in advance. I'm looking forward to contributing to this forum in the future. Cheers.