I'm looking to buy a new computer and have been thinking of a new 15" MBP which can sit on my desk with a monitor and wireless keyboard most of the time. There will be times when I'll need to use it away from my desk for location work so I like the idea of portability and not needing to keep multiples machines in sync etc. I'm just looking for opinions on whether using a laptop as a main machine for daily use with PS CS5 and Lightroom is a good longterm option .... ie. are they less durable than say an iMac or Mac Pro? I'll be relying on whatever I buy to run my business so it's critical that I don't buy something that can't keep up physically. Most of the time it will be spent sat on the desk so it wont be exposed to daily knocks and movement in a laptop bag. Part of me says buy an iMac as the i5/i7's are desktop version and not mobile so there will be a performance improvement but I'm pretty certain that the mobile versions will be just fine so my concern is whether they are likely to wear out faster in a MBP? This isn't a question of trying to scrimp on what I spend as the price difference between MBP and iMac are not all that different. Yout thoughts/advice please?