Running USB device on mac

is it possible to run PC USB devices on a Mac? I know now that many mouses and keyboards work.

But how about the “avermedia UltraTV USB 300 device”?
http://www.aver.com/products/tvtuner_UltraTV_USB_300.shtml

its a external TV tuner card. The software that comes with the device will of course not work. BUT will a mac still detect the hardware device? If so what mac software will work with this device (one that records and all the usual stuff of a tv tuner).

I heard of Virtual PC made my microsoft. But gees, isn’t there anything free out there?

Thanks!