WTB Misc controls for a new build

[Mikecouil]

So we just finished our first build (I'll put up pics in the announcement section soon, just haven't transferred them off my phone) and it was fun and a great learning experience but it's not nearly as nice as what we can do.  So....we are building a new one   Before I go buying all of the stuff, does anyone have:

Joysticks
illuminated buttons
Ipac or other encoder
trackball preferably USB
Anything else I'm not thinking of

Used is quite alright as long as it's in great shape.