Title.

Also, just because a tv can, does that make it automatically a good choice? Are there some better for it than others?

Look at TV inputs and PC outputs. Common ones are VGA, HDMI or DVI. S-video is another one. HDMI is the best if you're wanting to have video and audio output. My TV is goofy with connecting it. I have to change settings to make it fit, even though it's at 1920x1080 resolution already.

Well my tv is a 3 year old flatscreen 32 inch HDTV with multiple hdmi inputs. Does that automatically qualify it?

I don't know the refresh rate although I suppose I could figure that out.

My TV is a 42" plasma that I bought more than 3 years ago and its been connected through HDMI ever since. PC gaming can be a little demanding sometimes if you don't have a strong GPU...you know, with resolution to accommodate a large screen.

I believe as long as you have the correct connections available it should work.

I will say that when I connected mine via HDMI there was a black box around the edge, as soon as I got myself a DVI cable and used that, it fixed itself.

What sort of gpu do you need to support a 32 inch? Will just about any gpu do?

Depends what you plan to do. Any GPU with the proper outputs can use a TV with the proper inputs for standard OS type stuff.

If you plan to game with all the bells and whistles, you'll want a better (gaming) GPU, just like a monitor would need.

What resolution is it?

On a side-note, are you going to use your TV for gaming or general PC use? I personally really don't like using a TV for work or heavy web browsing. They just aren't made for that type of use...they lack the pixel clarity and sharpness of a monitor. That's why monitors tend to cost more per inch of screen real-estate.

Gaming.

Ok. Well, if your PC will currently handle running games at 720p or 1080p you should be all set. The only issue that I've run into with one of my TVs was that it doesn't like how often my video card wanted to refresh the EDID handshake (supported display modes and such). I ended up needing http://www.gefen.com/kvm/dproduct.jsp?prod_id=8005to prevent my TV from occasionally losing signal when changing display modes. My other 2 TVs did not require one. Hopefully you won't either.