Slightly cheaper than the E-300. A200 is S$1250 w/GST. I think E-300 is $1799(?) with kit.
Well, as many have mentioned, the A200 is a stripped-down version of the A2. The A200's improvements over the A2 include the new CxIII processor and a flip-out-and-twist LCD monitor. Beyond that, I'm not sure what else. The A200 loses out to the A2 because now it has no hi-res EVF, PC sync socket, lacks a rear command-dial, and it can't accept an external battery-pack/vertical grip. And personally, I don't see the reduction in physical size as an improvement either.
So if you're looking for a "good and affordable" camera in general, the D70, EOS300D and E-300 probably represent better value for money. If you're specifically after a prosumer camera (or even a high-end compact), the A200 doesn't seem to cut the mustard either. IMHO, it's neither here nor there.
Want performance on a budget? Get DSLR.
Want super-powerful compact? Get Minolta Z-series, Panasonic FZ-20, etc.
Want prosumer? Get the A2 (if you can find it), or even the Sony F828.
All this, my personal opinion.