I use an 'Ultimate 2000 PC to TV scan converter' so I could watch DVDs on TV while using my DVD-ROM drive and for downloading Anime DivX fansubs (aka 'digisubs'). For the most part, this device is excellent. The sweet spot seems to be 800x600 @ 70hz (32-bit color), which is good, as I normally use the computer at similar settings except 100hz refresh rate. Although there was a bit of an issue with the TV-out image being way too blue (as in the color blue), but that seemed to fix itself as the unit was used more. I guess you could say the TV-out had to be 'broken in'. Video quality is pretty good using composite cables. It has multiple output types; s-video out, composite/RCA out, and a 3rd output whose function I don't know. It was pretty easy to set up, though there is a semi-mess of cables involved...
There are only three downsides to this TV-out:
1) While you can have the image be sent to your monitor and TV at the same time, the image on the monitor is just a teeeeeeeeeny bit blurred. It's barely noticeable, and you get used to it pretty quickly, but if you lok carefully you can see that the monitor image is just barely out of focus.
2) This gizmo was pretty hard to find. I could only find it at CompUSA, and I don't know if they still carry it.
3) Price. This gizmo was a little on the pricey side at $100. At the time I got it, it was cheaper then buying a new video card. Now, it may be a little too pricey in comparison to just getting a new video card.
Hope that helps.