Hauppauge makes the best tuner cards. I payed around $60 for mine last summer (Hauppauge WinTV 88x series) and it works pretty good for all I need it for. Unfortunately, I wasn't paying really close attention when I bought it, and as it turns out, it's one of the Hauppauge cards that doesn't have really wide third-party program support. Which isn't too big of a deal, because the Hauppauge software is pretty decent.
The other regret I have is that my card doesn't have hardware encoding. This is important if you're trying to record to DivX or XVid, or a number of other codecs on the fly. Even though my computer exceeds the minimum specs to encode to DivX on the processor, every time I've tried it, the audio and video won't sync. I can record to MPEG-1 VCD without trouble though, and transcode it later.
So, get Hauppauge, but make sure to get a card with a hardware encoder. Also, check some third party DVR programs to see what they support before buying. As a final note, RF remotes are nice, but pricey. IR remotes are cheap, but require a clear line of sight to the receiver. The bonus is that my remote works with applications other than just the TV watching/recording software, such as iTunes, WMP, etc.
Marsz, marsz, Dąbrowski,
Z ziemi włoskiej do Polski,
Za twoim przewodem
Złączym się z narodem.