whoa...that seems like an irq problem to me. can you check under device manager (right ckick my computer, properties, hardware, devices, View-resources by type)? seems like a couple (or more) devices are not co-existing very nicely.
in my 'beast' box, video, 2 lan cards, 2 usb ports,and the sound card are sharing the same irq. mouse (ps/2) and the rest of the others are on their own.
check your system's event log, too. chances are it'll show what processes have been headbutting each other.
imho, this is something that involves a little more work than normal.
updating drivers is something i wouldn't do as soon as a new version comes out. i've run into cases a new version actually causes more harm than good. general rule of thumb is, "if it ain't broke......" -- unless of course the new driver hasn't had any bad feedback in the past week!
i know there are a few apps that check your system's drivers and installed apps for updates, but i haven't used any.
other than checking with micro$oft's update site, cursory checks on the device maker's sites pretty much work well for me. different story for my thinkpad, though. ibm posts all the updates regularly on their site.