Most cable companies offer both Digital and Analog still b/c there are alot of old VRC's and televisions that still have analog tuners in em. Depending on which signal your plan offers wil determine what card you should be purchasing.
* Hybrid cards will take either Analog / or Digital signals
* Most dual cards have 1 analog and 1 Digital signal
* Analog cards will be cheaper since they are older tech - and over air broadcasts have all switched to Digital
* Whatever card you are looking at - you'll need ClearQam to decode your cable signal.
Avermedia A188 has good product reviews for $65 bucks if your Cable signal is Digital. It's got a dual tuner so you get 2 PIP capability off a split signal. If you want a Windows Media Remote add another $15-20 bucks
http://www.newegg.com/Product/Product.aspx?Item=N82E16815100041
The Avermedia cards look to have the best value / for performance from what I've read on NewEgg's reviews. Hauppage are decent hardware - but the software appears to be somewhat buggy. I've not used any Hauppage - so others will have to weigh in em beyond that.
What O/S are you using. Before purchasing a card - might want to read through some reviews. I've read quite a few reviews - where some TV cards don't work so well with Win XP.