I agree with everyone's suggestions, but don't be so quick to give up on chameleons though. These are quiet fragile, and do take a lot of research and commitment. For every species I've ever owned I've probably done at least a week's worth of research BEFORE I got it. Then after I purchase them, I do even more research. I constantly read more and more about not just the species I have, but also the species I think I may work with in the future. Generally, Veileds, Panthers, and Jacksons are suggested for first timers. Personally I started with a Veiled, but thats just me. If you think a Male Veiled will be too large, so will a Panther male. But, you are already building a large enough cage for either species to be in as an adult. That being said, it seems like you may be wanting a handable reptile, why not a bearded dragon or leopard gecko like mentioned before? Also said earlier, they both make good first time pets, and handle well. They also are more forgiving to husbandry issues.
LPR08