I have a homemade wooden and screen cage. It looks very nice but wasn't cheap to build. The enclosure (2x2x4 ft) sits on top of a cabinet base. The lights are held in a top unit. The best part about it is it's made so that it can be easily taken apart to carry or fit in your car to move. This is probably unnecessary for most people, but because I'm just now graduating college and a permenant home isn't in sight, it's very nice.
It's made out of 1 inch thick (really more like 3/4 in) pine boards. For the enclosure area we used 1x2s, for the base and top we used wider boards.
Originaly the lights were to be hidden by the top, but because I use a Powersun (which has to be a foot from the enclosure) we had to elevate the lights above the cage. One thing I'd like to add is a plastic tray in the bottom to collect water. Preferably one with drainage holes so the water could drip into a bucket.
Here's a bad picture of it. I now use shelf liner on the bottom, not newspaper. This pic was taken before it was completely set up inside and before there was a cham in it. When I move in a couple weeks I'll take pictures of it all broken down. And a better one of it put together.

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~Melissa
1.0 Ambanja Panther (Diesel)
0.1 African Hegdehog (Kaimah)