[JSLTIGER]

Cornwallis,

There is no way to increase video card power on a notebook short of buying a new one, unless you've got one with modular graphics. If you don't have modular graphics, than the video chip is soldered directly onto the motherboard itself. For example, in my sig, my laptop is equipped with a 64MB ATi Mobility Radeon 9600. There is no way for me to upgrade unless I get a new laptop because the 9600 chip is soldered directly onto my motherboard.

There is no such device similar to what you're inquiring about. External video cards do not exist, although external TV tuners do. Even if they did exist, the USB bus, even the USB 2.0 bus, is far too slow to support a video card with any decent amount of speed as bandwidth is only 480MBps, as compared to AGP 8x at 2.1GBps or PCIe x16 at approx 4GBps.