will this do as a grow room

how many plants could i fit in here? what wattage should i use? and how should i cope with the unbalance of levels due to the drawers? thanks.

Definitely. You can hook that up real nice. You could take the drawers out or separate the cabinet at the top of the drawers and have a veg and flower chamber. I would say you could use a 400 watt hps if its cooled properly. CFL's are always good. Pretty much anything you can think of you could most likely do. Just keep it cool and light tight. I'm actually looking for something like that myself.