I've just posted my Sony kit on a sale forum elsewhere which will enable me to go full steam ahead with Canon. As a rough estimate, if everything sells it will mostly pay off the 7D kit I just got.
Before they go, I am looking back on the great times I had.
The A350 was my first DSLR. I picked it at the time over the 2d choice Canon 450D mainly for the fast AF live view. It is a feature I will miss, but I think I can make do without. The other plus was the built in image stabilisation, which you can't get on bright primes on Canikon.
My first lens was the 50mm f/1.4. It actually arrived before the camera. At the time, I didn't "get" it at all. I got it for low light ability, but the shallow DoF made focus a nightmare. It was only after many months before my skills and usage awoke to using it, then I was hooked on bokeh. It went from something I rarely used, to something I regularly used.
The main lens I used is the Carl Zeiss 16-80. In a way this was a bad choice, in a good way. As it was my first zoom, it set the expectations for everything after it. Of course, it was top of the range, so everything else seem lacking compared to it. Took me a long time to realise that. Still, it was a versatile lens that could be used wide open without fear. Before the recent release of the Canon 15-85, if I could have one lens moved from Sony to Canon, it would be this lens.
My first used lens was the Tamron 28-300. It was cheap on ebay, and I took a gamble. Turned out this was the oldest version. This taught me about focal length shrinkage and also enabled my first attempts at birds in flight. The performance on the long end wasn't the best, and I even started to replace it with the newer equivalent. That was even worse! So I ended up keeping the old one.
And the last lens purchase was the Sigma 10-20. My first experience of Sigma build quality and after sales service. If only they put a bit more effort into the 1st, people wouldn't need to rely on the 2nd so much.
I even came very close to buying an A900 - having got bored of waiting for the A850 to show up, the A900 was quite attractively priced. I said to myself I'd wait a week for the new credit card cycle to start before buying, but that week was too late. Price increases kicked in hard and never recovered since. The A550 I think is the best featured upper-entry level body at the moment, and if I was buying starting fresh today in that price range, it would be my choice.
Of course there is some loss in selling kit, but I felt I got my money's worth out of it overall. No regrets going Sony to start with. I still think they have the most potential of the big 3, but right now I'll let them catch up a bit more.
_________________Canon DSLRs: 7D2, 7D1, 5D2, 1D, 600D, 450D full spectrum, 300D IR mod
Lenses: EF 35/2, 85/1.8, 135/2+SF, 28-80 V, 70-300L, 100-400L, TS-E 24/3.5L, MP-E 65, EF-S 10-18, 15-85
3rd party: Zeiss 2/50 makro, Samyang 8mm fisheye, Sigma 50/1.4A, 150 macro, 120-300 f/2.8 OS
Compacts: Sony HX9V, Fuji X100.