What pet?

Question
Hi,
I currently have 2 Leo geckos and I am looking
to buy another pet but I don't know what kind I
should get.  I have looked at tokay geckos,
bearded geckos, corn snakes and several
types of turtles and frogs.
What would you suggest?
I have pleanty of time to care for them
I have an empty 20gallon tank but I'm willing to
go up to 50 gallon
does not have to be 100% handleable but
somewhat
Price range is 200 max

Thanksk

Answer
 If you want to stick with the 30 gallon tank, then some pretty dart frogs would be quite comfy, or perhaps another small gecko like a crested.  
 If you got with a 40 or 55 gallon breeder tank, than a bearded dragon makes a personable pet.
 I would stay away from tokays, they are vicious and can be rather noisy.