Sony expected to unveil A300 on September 4th/5th

It is almost certainly APS-C format, 12.x megapixels CMOS, 5.5 frames per second, ISO to 3200, improved AF, 3 inch screen or very much improved 2.5 inch, 95 per cent view 90 per cent scale (or vice-versa) optical glass prism viewfinder, AF assist on the body, improved flash, same basic shutter speed range as A100, slightly altered mirror/shutter action, very fast card writing, some water and weatherproofing upgrades, generally better response, altered user interface; much better high ISO noise, further enhancements to SSS.

Read at Photoclub Alpha