I know of the Blizzard cards, and they do seem very reliable, plus the SCSI addon is most useful. Finding one for a reasonable price however is tricky at best.
I had to use tape to fix my scsi board in place. I ended up leaving the case screws off my a1200 as I was having some problems with it. Of course now I've lost them....
I think some of the problems I was having were due to a dodgy ide cable causing the machine to lockup randomly. I guess if I actually used the scsi board for anything other than extra ram then ide wouldn't be a problem.
