Just reading over discussions about what computer/laptop to get for photography ... when it struck me that it almost sounds like my laptop is incapable of this purpose. I run both LR and PS on my MacBook Pro 15" made in early 2009 ... I bought it used for $300. It has an Intel Core2Duo 2.8Ghz processor, 6GB ram, and a slow 5400 RPM HDD. Don't have much problem with LR ... though I do not do much with PS (I expect to see whirling beachball).