Take a look what i just found at amazon:
Their description:
Product Description
Connect with your world day or night using our Webcam with Night Vision. 6 LEDs will illuminate the darkness, and a high-resolution color sensor provides 24-bit true color. Twist the lens to focus it for an incredibly clear picture. Great for Skype, ICQ, AIM, MSN, Yahoo, or net meetings!… More >>
Go & get it here - i can recommend it:
USB 6-LED Night Vision Web Camera for PC Laptop Notebook