Dear EnigmaticRonin,
From what I understand of what you are trying to do the have a few options. If I understand correctly you want to connect to the wiimote camera but the wireless aspect isn't that important (meaning the wiimote can be close to the board). In this case you have 2 possibilities:
1. (less favourable but definetly feasible) If you don't mind getting your hands dirty than you can desolder the wiimote camera and connect it directly to the fpga board. The wiimote camera uses i2c protocol to conect and people have connected it to microprocessors. If you need links to this just ask, I have a few.
2. (more favourable but not sure how its done) I remember reading somewhere that you can access the camera through the usb where the nunchuck is connected. I can't remember where but after a small search I found this site that seems to confirm this:
http://www.metacafe.com/watch/930208/easily_turn_a_wiimote_into_a_mouse/I wouldn't connect the wiimote to the computer with this hack but it seems to confirm that there is some kind of connection there. Maybe someone else can help you with this
About connecting to the wiimote through the bluetooth I don't know how they do it exactly maybe someone else can help you with that approach. I hope I helped
Gil