Hey bud, the main things to look out for when buying a digital camera are the following that I can remember off the top of my head:
1. Make sure the camera uses a Lithium-ion rechargeable battery, because normal batteries just don't do it.
2. Make sure the camera is optical zoom and not digital zoom.
3. Most memory cards are affordable, but some are cheaper than others.
4. If you're going to get something with a high MP, then you have to have a very good printer unless you just get them printed at the shop.
Thats about all I can think of off the top of your head. As a multiple digital camera owner if you don't check any of the following things before you buy, you will kick yourself! Kodak camera's are good and have most of the features on most of their range. Not too sure about Samsung's though.