I went down this route years ago. Its a lot of pain, I wouldn't do it again. In the end i bought an A4000, expansion was so much easier. You will be ultimately limited by the AGA chipset, but getting a graphics card to work is one major expensive hack. Really if you have a scsi card, an '030 accelerator with about 8-16 meg ram and a cdrom then thats where I'd leave it. This will give you good speed, good compatibilty, especially if you run software made to run on AGA eg AGA games, graphics software like dpaint, brilliance, Image Fx in classic mode, Scala, wordworth etc.