i have got this click here card. It is pci which means that you have to take the back off the pc (and make sure that you have a free slot before you buy). it was very easy to fit.
The beauty of this is that is is both digital (freeview) and analogue. However, the recording software is very tempremental and often it doesnt record what i have set it to record. The picture though is very good.
If you havnt got a good freeview reception then perhpas none of the digital cards will work for you?