A favorite camera is by far the PS3 Eye. It is USB, can be found for super cheap online, and sports a host of features - variable resolution and frame rate, CCTV m12 mounts and lenses, IR & UV capabilities, plus a great open source app we helped develop hosted here: https://github.com/fred-dev/ps3EyeSyphon_2
To use for infrared (IR) camera tracking a suitable LED IR flood light is needed.
After trying many different lights online it was time to test out the top 4 and see how they stacked up in a more systematic manner.
As can be seen, the lights featured different diffusion patterns and strengths. Each picture was taken using the same camera settings.
Each light uses 12v DC and can be fairly easily operated on.