I am in the process of upgrading my old G5 PowerPC Power Mac. I have done a lot of reading with regards to the new MacBook Pro line. Although I will be using it for Photoshop, hopefully get into using Final Cut Pro and probably some GarageBand, I'm not convinced that I will benefit from splashing out for the latest i7 Quad Core model. For example will the quad core capability actually be utilised (multi-threading) or will I only be using a fraction of it's capability? Another issue is to get the big screen MacBook Pros it seems you have to pay for the top processor spec, which I'm questioning. You can't have a big screen , retina screen but lower spec'd MacBook Pro. So as an alternative to the above, I am thinking of buying my friend's old iMac from him. It's a 3.06 GHz Core 2 Duo 4GB RAM 24" (from 2009) which would be a quarter of the price of an MacBook Pro (and I could then easily afford an iPad for portable 'around the house' family use). I would also easily be able to up the RAM to 8GB of this iMac. My question is, is this a shrewd move i.e. will this do the job for what I need it for and how long will it last? My current PowerPC (which ironically still performs brilliantly) is fast becoming obsolete with regards to software and I don't want this problem with my next computer. Many thanks.