I forgot to say, welcome to GC! <img src="/ubbthreads/images/graemlins/wave.gif" alt="" />
By the way, I'm planning to build an all PVC coated wire cage myself in the very near future, and also build a couple extra ones to sell to make up a little of the cost of building the first one. I'm hoping to sell them at the Sugar Glider Retreat here in Austin (actually Round Rock) in February.
I said you can make that wire cage any size you want, but if you make it a lot bigger, you need to make sure the wire you use is nice and stiff. I'm getting mine from
www.klubertanz.com They offer 1/2" by 1" in 14 gauge and 16 gauge. The smaller the number, the stiffer/thicker the wire. I haven't decided whether to order the 16 gauge or if I need 14. My cage is going to be 48" tall by 33" wide by 16" deep. The Container Store has a plastic bin (their long underbed box) I'm using for a drop tray that the cage will set inside of for $14.99.
Good luck!
Oh, and make sure you don't use galvanized wire. There are a couple of posts about that on the board recently if you don't know about that whole issue.