Since coming from a leo I might suggest something a bit smaller first. Try a beardie or a blue tongue skink. Monitors and Tegus and iguannas are not a second type of reptile in my opinion. They are a ton of work and can seriously harm you unless you know what you are doing. Well honestly they can seriously harm you even if you know what you are doing.

I LOVE tegus and have wanted one for forever.....however....I have taken care of one that had an attitude and got mad at me a few times. Its itimidating to say the least. They need HUGE cages and a good controlled diet. Quite frankly that is the least of your worries with those. lol

I don't mean to talk you out of it......I just hope you take smaller steps prior to getting one. Deal with a mad BTS coming at you first...