Never have gotten salmonella, but I've always washed my hands after handling and they never touch my face. Every pet can get you sick, and I'm actually most cautious around my fish. I actually know several people who have gotten Mycobacterium marinum, but no one ever points that out as a reason not to keep fish and they shouldn't. Just wear gloves and/or wash your hands. If you have open cuts on your hands/arms don't put them in the tank. WOW how will I ever remember all that?!

Salmonella isn't a good reason for most people not to keep reptiles. Just keep clean like you would around any other animal (or bathroom, or kitchen, or...).