I'm getting to grips with my su700 now and it's more powerful than I thought. I'd prefer to have some other storage medium than then FDD, but I didn't get the cables that I'd need to add the scsi board so I'll need to make do with loading a bundle of floppies each time I switch it on.
But for now I'm just using it to drop one or two bar loops in and out while I'm playing, and some one hits. The fx are top class as well.