What to House in my new 40 Gallon breeder???????

Ok i made a post about a month or so ago but i posted it in the bp thread.... I got a 40gallon breeder tank I am moving into my apartment and my uncle is in the process of building a stand for it my 40 gallon breeder will be on top and my 20 gallon long on the bottom ... my normal BP will be in the 20 long ... I want to buy something to put in the 40 i need some suggestions this will be in my living room i was considering a bearded dragon .. a redtail boa (atleast until it got 4 or 5 ft ) dunno Im going to the Hamburg reptile show Oct 17 so please any suggestions ........................sorry for such a long post lol