I know, I know. I should know the answer myself, but when you are on the point of purchase, it's ruddy hard. I'm currently on a PowerBook G4 1.67. I'm frustrated from all angles. CPU, GPU, RAM, storage and inputs... I'm a artist/creative, and although I do make some money from video work, it is not my primary income. I work with a lot more photography than video, but like I say, it's not currently an income. I work with film, therefore I have high resolution scans of negatives that the G4 just cannot cope with. I plan on turning the Mac Pro, which offers me so much more longevity and upgradeability than another laptop, into a money maker and creative hub. If I list my usage, hopefully you guys can help me decide wether, the 8 Core, although probably overkill now, will offer me huge longevity/potential. I plan on keeping this 4-5 years... Ok: 1) High resolution scans (file size in the region of 500mb - 1.76GB) 2) Photoshop retouching of hi-res negative scans (dust particles or scratches, with view to selling prints) 3) Video work using FCP (my own work and some client work) 4) Video encoding/DVD authoring 5) Handbrake encoding of some of my more precious DVDs 6) 100GB+ iTunes library, that is currently running off of an external HD 7) Logic music production (future ambition) 8) Web design (future ambition to support my photographic/video portfolio) 8) Gaming, mainly RTS games from the previous 3 years up to current - I am not a FPShooter fiend, and I don't require insane frame counts I've been waiting to upgrade to Leopard, as I planned to purchase a new computer this year anyway. I'm also dead against the iMac, and I feel the Mac Pro offers me more control, and longevity. If you recommend I go 4 Core (which is £320 less than 8 Core) could you suggest a setup. I will be purchasing a monitor too, this could be the £320 I save by going with quad. Please, any suggestions/advice. I feel everyone is in a different boat, and deserve some feedback. Hopefully this will answer other questions for other uses. It's worth adding that I am entitled to 8% discount as a Local Government employee.