The A70 is a good camera, I'd go with the A75, it was about $150 on some deal that's passed now. $200 should be possible for it. It's basically a A70 with more modes, a bigger LCD (1.8 vs 1.5"), better button layout....same size and weight. I have not verified but someone said it auto rotates the image if you take them vertically. They are identical sizes/
I was contemplating selling my A70 high at $150-175 on ebay and funding the difference for the A75.
I looked into the A70, A80 and G series when I bought my A70. The G I discounted right away as I may as well go real dSLR at that size level. The A80 didn't feel better to me and I doubted the longivity of the rotating screen in P&S situations like crowds, on rides, etc. I wanted a durable reliable camera that allows manual adjustment when you know the shot is not going to come out on auto.