I use a 32MB Winfast GeForce2MX board, which was about the cheapest and cheerfullest one around at the time. It doesa fine job, despite only coming with Chinese instructions. It was bundled with a great software DVD player, which works very well without any hardware decoding.
In the end, it depends on your budget and requirement. I'm pleased with it for general PCing, photo processing and gaming.
Hope this helps.
Sq