Yep you are right. I bought the Elgato EyeTV Hybrid (digital and analogue inputs) for my mac but it worked with PC too. We have very poor analogue reception and no freeview in our area. The picture was shocking so i sold it! If you get freeview i cant see any problems.
I got 2 Nova T pci cards, They've never failed me........yet....
There freeview cards i use with Vista media Center,
Recommended, only if you have good freeview reception