2gb = Enough.
500 mb= maybe about 500-1000 or so

I wouldn't get a digital camera that didn't have a manual mode because that's how I like to shoot. If you don't know how to use manual mode, you may not care about that so much, but it's always good to learn

I'll just say that the samsung s730 is very impact resistant :]] I dropped it on a road and the soft body plastic absorbed the shock so it didn't break any of the mechanism

canon of course is universally highly regarded as far as cameras go I've never owned one myself though.

megapixels are pretty much irrelevant as far as actually meaning anything. The ones with higher MP stats may use interpolation where the overall quality is still pretty bad compared to cameras who may claim to have a lower number of megapixels (million pixels, 1000x1000 + ) So don't just look for whatever has the highest.