@xaccrocheur:
In fact, I'm happy with what I have now, I mean the AGA chipset and it's 15Hz TV-Out. But the framerate can be improved, and maybe the number of colours ?
The problem with adding a graphics card is that the software you're currently using (Scala, DPaint, Brilliance) will not support it.
There are of course quite some gfx and multimedia packages that will run on a graphics card, but most of them are targetting a somewhat different audience - they're mostly intended to be used for manipulating (static) 24 bit images. I'm told that DPaint and Brilliance are still unmatched as far as creating animations is concerned.
A good DPaint clone is PPaint, which is now freeware and available
here. It is limited to 256 colors, but it supports gfx cards. Everything else available for gfx card users is more or less a photoshop clone (I'm exaggerating here, but don't expect anything in the style of DPaint or Brilliance).
Same goes for Scala: There's now a replacement called Hollywood Designer, which is pretty powerful (but not yet as intuitive as Scala) - using a commercial plugin, it can even play Scala presentations (on gfx cards aswell). However, it is a completely different package, albeit with a similar concept. And it needs as much horsepower as you can get.
