Buy yourself a hub. Something like the first on the list here. Ebay.
But as to your problem, do you only have one front USB port? But if the driver disk did not work, did you try installing the chipset drivers? Windows 8 seems to be throwing up so many problems, far more than there were with Windows 7, I am not sure why so many people are rushing in with the upgrade as it is really aimed at touch surfaces rather than for most desktops.