Triple dpreview forum comparisons and the A550 Ãœber-comparison :)
1) A550 raw noise vs A850 vs Canon 7D
2) Low iso comparison: Sony A350, A550, Canon 5D
3) A900 vs D3X: veryinteresting stuff!
And finally there is one more comparison…the A550 fights against the A380/A700/Pentax K-7/Olympus E-620/Canon 50D/Canon 500D/Canon 7D/Nikon D300s!!!