Personally, I love my A3000, specifically because of the sturdy case and internal scan-doubler. However, it's been a big issue lately locating accelerator cards for this model. I had a Cyberstorm MK-II with an 060, but it seems most of these boards will not work properly in an A3000 due to some SCSI / DMA issue. I ended up forcing a WarpEngine 4040 into my A3000 case. Naturally none of these boards have issues with the A4000, as this was the machine that most were designed to run in. I also considered the AGA chipset advantage minimal when I still had my A1200. I found using my A3000 and GVP Spectrum was adequate enough.
:-D