It sounds as if you want the features of the Radeon AIW. I have had this particular board for about a month and after the hastle of getting it to work with my machine ( a chipsett driver issue, not an ATI issue) It works great. Also, it has the TV tuner, you can pause live TV, has great DVD playback, easy to record MPEG 2 files, and so far, works great with the games I play (Age of Empires 2 Expansion, Test Drive 6) I have not had the chance to buy more games, or play them for that matter but it is a huge preformance increase over me AIW Pro 8mb PCI.
If it works for you then don't fix it.