Monster Rain wrote:What's a good brand of polyurethane for this sort of thing? Is this something they'd have at Lowes or Home Depot?
Home Depot carries MinWax.
A word of caution, however: depending on what state you live in, you may get different products. California has outlawed oil-based Polyurethane and the "oil-modified" water-based stuff is nowhere near as good - it's like comparing maple syrup with skimmed milk.
The water based stuff needs many more coats than the oil-based, although admittedly, it doesn't smell or want to explode like the oil-based.