I have the new version of the MacBook Pro 15" and LOVE it! (Specs: 2.53 GHz Intel Core 2 Duo, 4GB 1067 MHz DDR3 ram) and I absolutely LOVE IT. It runs my photo editing programs without seemingly any effort at all and uploads my photographs at a fantastic speed! I use to have a Macbook and it did nothing, hence the upgrade.
Here's more info on my laptop:
http://www.apple.com/macbookpro/
I would never get anything else (other than a desktop, but we have no room in our house for one of those).
HTH
