I'll 2nd the DIY option on the stand. I built one myself as well. I didn't take a woods class in school, nor do I have any high $$ tools. A circular saw is about all you need, and that's just to save some time and effort. If you have a friend with a mitre saw, even better.
I went the mega cheap route and built a 2x4 frame and placed it on top of stacked cinder blocks. Painted them all, put on a coat of polyurethane, used some concrete adhesive on the blocks, and she's done. Total cost $14: $4 for lumber, $6 for the cinder blocks, $4 for the concrete adhesive. (Paint, varnish, & woodscrews, were all leftovers from other projects).
Here's what I would do if I were to build another one.
http://www.cichlid-forum.com/articles/Double_55_diy_pt1.php
I would alter it to add a shelf midway up in addition to the bottom as I don't need to house two tanks. You could build one of those for under $30.
The plywood is the expensive part for sure. If you can get away with skipping it and living with something that isn't quite as fancy, you can save a bunch. It easily doubles or triples your cost.
As far as the hood goes....I don't have plants, so watts per gallon mean nothing to me. Just got basic cover +light.