Hi there! Welcome to HC!
Check out Greg Maxwell's site on GTPs for really good information: If you're really interested in getting a chondro, I'd recommend getting his new book too.
http://www.finegtps.com/index.html
Here's a quote lifted directly from his site:
"Cage Size
I prefer larger cages than are often recommended for arboreals. Because these animals are nocturnal and lead sedentary lives by day, there is a tendency to use small cages for them. Small cages provide little environmental stimulation and little or no thermal gradient. Saving money and space are poor reasons to decide on a small cage size. I recommend adult cages that are at least 36" long and 24" high and deep.
Cages can be too large, and excessive air space can be difficult to heat and humidify. The tall cages often recommended for arboreals are not the most practical, and anything over 30" high is excessive." --Greg Maxwell
www.finegtps.com
His site has info on all types of cages as well as detailed instructions on how to build your own.
I hope that helps.
