I am using a tub but i feel uneasy using a tub because the humidity is awful etc... id prefer getting a vivarium to be honest

Which would you recommend then?

This one:
http://www.amazon.co.uk/Hagen-VivExo...2030667&sr=1-2


The spec for the one i am using now the tub:
Depth - 40cm
Width - 60cm
Height - 18cm
(i think)