BSODs and Vista

I've been trying to elimante a constant crashing problem with Vista.

Whenever I play games, I get about five BSODs in a four hour period. When I'm not playing games, I get about one BSOD a month.

The error is different every time but most of the time it's 0x000000D1 or 0x0000000A and both errors are usually associated with bad USB device drivers.

So...tell me what I need to change...I'm going to go through and just unplug everything until I stop getting the errors so I can narrow it down. But I'm hoping maybe someone else has experienced this and knows right away what the problem is.

USB devices I have plugged in (and drivers):

Intellimouse explorer 3.0 (default drivers Vista installs)

Xbox 360 controller for Windows (default Vista)

Guitar Hero 3 for Windows controller (default Vista)

External Western Digital HDD (default Vista)

Ok I guess they all have the default drivers installed. Can anyone recommend some drivers for those devices if they've had problems with them before?

Rest of the system...

AMD X2 5600+

8800GTX latest drivers

X-fi XtremeMusic latest drivers

2GB RAM

Try moving the USB devices on to different USB hubs. My dad had a bandwidth exceeded BSOD which was fixed by putting his USB mouse onto the PS/2 instead.