Been with my 30D canon for several years (since the model came out), It's been a fantastic camera. However can't help but feel its aging a little. I've not been one for megapixel wars, as I'm sure most of us know that marketing game. That being said, 8 megapixels seems a little lacking to me. I bought a 27 inch iMac recently and wow, the monitor is great but the extra resolution means my 8mp photos seems lacking. Sounds like a funny reason to get a new camera, I know. But 99% of the time I, enjoying photos on that monitor so I want them to look good! 60D or 7D would be the logical upgrade but was thinking about the 600D (t3i) for cost reasons, at least until I splurge on a full frame (5d mk...). I know I'll be giving up some body quality and fps but I think the 600d picture will be noticeable better then my 30D. What do you all think, is it a good upgrade?