Camera Choice okay this is sort of the second post ive made on this i admit but i went to look at the Rebel XT and i was impressed however it felt a bit small. I tried a d70s and was more impressed however its only 6mp and there is a new version coming out (at a higher price?) So i came to the sony, i was advised to get it by one 'expert' but i think the they were secretly a sony specialist. What do you think to the a100? better than the rebel and the d70?