I was thinking of going for a tower setup but budget and a few other things I've decided not to go any further.
Going to concentrate on getting a 030 1200 in it's original wedge going. Although have been tempted to buy a 060 but the price has always been outside me reach, but we'll see what happens this year :-)
The ACA1231 is very quick though, I was impressed when I did have it running. Although my 1200 didn't like it so it's off getting fixed at the moment.
Thought about the ACA1232 but not fast enough, plus 64MB was more than enough for me.