Reply to Box/enclosures?

Hey guys. Been very impressed with all this controllerism for a long time - and I finally pulled myself together to build my first diy midi controller. It's an old eks xp-10 I want to modify. The jog feels good, but the buttons are really shitty - when I splitted it appart I saw why. The buttons are actually all attached to the same piece of plastic - No wonder why it worked like shit. So under them are tiny small buttons - And I started to detach them, and have soldered a few wires on them attached to 30mm arcade buttons. Tested it, and all seem to work. So the next thing i'm looking for is some kind of dekstop box to put it inside. As the circuit is very tiny, it will fit inside almost any box - Where do you guys find good basic enclosures?