Hi folks, I was using a Windows desktop for my pictures that I had built myself and decided to go Apple. I bought a brand new Macbook Pro after seeing a lot of people using them for photography. I got Aperture 3 and have been using it a fair bit. I also got the trial version of Nik Software plugins. Whats starting to annoy me is that I keep on getting the 'beachball' when processing images... I have 4gb memory ram and have noticed a lot of people upgrade their ram to 8gb. Just want to hear advice from people who use Aperture 3 on their Macbooks and what they have done to make their system run faster. Thanks MACBOOK SPEC: Intel Core i5. Processor speed 2.4GHz. 4GB. 500GB SATA hard drive. 13.3in Back-lit LED display. Intel HD Graphics 3000 graphics card.