For my 1200HD the first thing I got was a multisync monitor. A Datic. It's still my backup monitor in case the one for my PC stops functioning (it is showing those signs at the moment).
The next thing was a Blizzard 68030 with 16 Mb of RAM. Quite expensive back in those days.
* A Turbosound sampler than I never really used.
* A very expensive HP printer (it was completely crap and dropped from HP's range a couple of months later). The print head collected dust and you had to clean the head after every single page if you didn't want to get ink dragged across the page. Directly after a clean it did print some rather awesome colour photos though. I've never had any luck with inkjet printers so now I've got a really cheap Minolta PagePro 1200W laser printer (no coulour). It works like a charm and has extremly low running costs.
* A Squirrel SCSI with 4x-speed CD-ROM (the CD-ROM unfortunately died after two years)
* A SCSI Zip drive to work as an extra (and replaceable) hard drive.