In our experience here are the best quality (and affordable) webcam and mics you should strongly consider:

Headsets / Headphones

• Full headset: Creative Labs Fatal1ty (~$50)
• Stereo Earbuds: Sony MDREX90LP (~$60) or Sony MDREX38iP (~$30)
• iPod earbuds also work great if you have a set and don't want to spend money.

Webcams

• If you have a Mac, the built-in iSight works great.
• Philips SPC-1300NC (~$65) w/ Audio
• Logitech QuickCam Pro 5000 ($~53)
• Logitech QuickCam Deluxe ($~50)
• Logitech QuickCam Orbit (~$100)

Also keep in mind that the best external cameras to use for VOKLE at this point in time are ones that stream in standard definition (SD). High definition cameras take a huge amount of resources from your computer cause your video stream to become choppy, as well as making your audio cut in and out.