Originally Posted by Rob

hmm, for me the jury is out.

USB adaptor might have some flexibility in location, even if the lead is short. Stick your PC in a corner and the PCI based card might get a poor signal. However if you previously had an inbuilt card and signals were OK, then definitely stick with the dedicated hardware and don't add the complication that USB (all things to all men), needs to use some of your PC's CPU type resources just to run, whereas the dedicate card has all it needs onboard.