Owen, well if you don't want to go that route, what about semi homemade with a professional looking result?
They sell these things called storage cubes, they go under a few different names but they are the stacking cubes or organizers they use to make those fancy closet with all that shelving stuff.
Here is an example of one with 2 shelves, the shelves are removable so no need to use them or you could use them as door fronts. Just cut out the center of the door front and install recessed glass.
Here is another example of one with a door already installed that you can also omit the shelves from and simply cut out the center and route the edges for a recess to install glass in.
These are melamine products so you would have to seal all the corners and crevices with aquarium sealer. If you don't any moisture that wicks into the outer edge or gets under the melamine will warp the wood underneath since it is pressboard.
These things come in all sorts of sizes so you can find one the size to fit your needs. Wal-mart, Target, Home Depot, Lowe's and other stores carry them in the home organization department and they retail about $19.00 and up.
Just an idea, hope it helps.