Reply to I want to build a custom controller

So I want to build a custom controller. Something pretty basic, just a bank of arcade buttons (because they look so goddamn sexy) for stuff like cues and possibly tapping in tempos. I have a pretty good grasp on how to solder things, but I have no idea where I should look to buy parts, or what parts I should look at getting.

tl;dr: Where do I go to buy arcade buttons, and whatever else I would need for a small midi controller with nothing but buttons?