Just get an Xplorer, they're the easiest to deal with.
You could also get an SG for the PS2, then a PS2 -> USB adapter. Only problem this brings is that sometimes the adapters don't translate the whammy bar input well, if at all.
i7 2600 @ 4.2GHz (multiplier caps at 42)
Powercolor HD6950 (<3 you, Squirrel)
8Gb G. Skill 1600mhz Sniper RAM
PS2 w/ FMCB 1.8 and 250GB HDD
PS3 (pretty much my media center)