I switched from the dark side a couple years ago. Started with MBP then finally decided to move on with life and bought a 24" iMac mid 2008 3.06 duo core w 4 GB RAM. I love it too. Macs are awesome. Now apple dangles the carrot in front of me with the i7. Here is the dilemma...I always had an upgrade "rule" that I needed to double whatever component I was upgrading. I looking at buying new i7 2.93 Quad w/ 8GB RAM and the SSD and TB. Question for anybody with one of these new machines is will I get double or better the speed with it? I run graphics ( photoshop) / web design and office programs spend for my biz i spemd 8 hours a day on it so the beach ball gets old quick....and while I know the Quad Core is probably overkill I've learned from the past to just get the best or regrets follow. Any words of wisdom from the forum? I really appreciate any advice to help me off the ledge.