If you have the windows cd then just insert it when it asks. If it doesnt then you may have to search manually on the disk for the file. Personally i thought that all usb hubs and cards would work fine if you have the latest service packs (assuming you have windows xp).
For your movies try windows movie maker - it comes with windows xp in accessories
80gb + 250gb WD HDDs
X-FI Xtreme Music