It all depends on the features supported by the card (blending modes, etc.). I believe every Radeon since the original has the elements that Jabo's plugins look for. Of course, other video plugins may differ. Newer cards do have an advantage where aesthetics are concerned though, with better support (or better speed) with AA and/or anisotropic filtering.
Thanks for your help. My Radeon 7500 constantly runs at 40 VIs with 4XAA and 16XAF, but when I turned them off, it still ran at 40 VIs. So, now I know it pretty much makes no difference (the card). Then again, I use a P3-500, so...