Hi I currently have a 15" MBP 2.2 SR and a 24" Imac 2.4 both with 4GB of RAM. My iMac lives in a study upstairs in my house and my Mrs likes to sit downstairs. In the evening I regularly get shouted it for sitting upstairs playing with my iMac and being anti-social The MBP lives downstairs and as a result of the above I spend a lot of time surfing downstairs and the Mrs likes using the mac downstairs as well. We also travel the UK in a caravan and it is very useful for processing photo's on the ove I am also a very keen amateur photographer and use Capture One to process all my RAW files. This I prefer to do on my imac as it has more screen space, I also like viewing my photo's on a good quality screen (my iMac) My iMac has a bit of a fault in that when it gets hot the screen flickers a bit which is rare but would probably cause me problems if I ever try and sell it, it is also out of applecare. I guess that in its existing condition the most I would get after allowing for the fault would be £500 so it is probably not worth selling. I have enough money to spend on either a 27" iMac or a 17" MBP with ACD plus a iPad if I want. I want to upgrade my lineup and get a quicker machine but dont want to waste it on something that will sit upstairs unused. Any opinions welcome.