1000D with better lens or 500D with kitlens?
I don't have any problem with the Kit lens. this is one shot example of HDR taken with kit lens + 500D
The result from the LCD seems a tad better than when you see it on PC. I don't think there's a big difference in IQ on 500D vs 1000D, still I'd choose 500D + Kit lens rather than 1000D + Sigma 18-50mm