i have craploads of scrap lexan... (similar to plexi, but better). i'm thinking lexan/plexi may not be suitable for what i want to do with it though.
i will be using it to hold a character lcd, 10-20 LEDs, and inside the enclosure will be the printed circuit boards i made for the lcd and leds.... another words it may be pretty ugly inside... i guess i could make it look all pretty and flashy inside, that would detract from what i want to be the focal points though.....
hmmmm.....
plus- you make it sound so simple... i swear i can't make a damned even looking rectangle for nothin...
if your planning on using up 2-3 bays Id consider using the shell from an old PSU, give or take it should suit you size wise as long as you know how to use a dremel or similair tool.
and if its just one well then just grab an old optical drive, or take a long walk on garbage day I've found some not so old hardware that still worked quite well on more than one occasion.