If you’re just using coax, then anything should do fine for you although I’d stick to hauppauge (or any card certified for vista/media center for that matter).
Note that the signal won’t be going straight through to your monitor though, it’ll be decoded by your tuner card, and will display on screen via wintv or media center (or whatever 3rd party software you want to use).
If you just want to use your monitor as a display for your sat. box (IE, no software… which it sounds like your asking for from your post) you can probably get an HDMI to DVI adaptor, but then you’ll also have to somehow get audio to the monitor/speaker setup aswell via an audio out from the box.
The only problem with this is that it might not display correctly on screen as I don’t think it will support 1680x1050 resolution, but I have no real experience with this