I ran a 1200 with 1230 + scsi + HDD and extra floppy drive off a standard 12000 PSU for years so you'll be fine as you are.
My location
I ran a 1200 with 1230 + scsi + HDD and extra floppy drive off a standard 12000 PSU for years so you'll be fine as you are.
A1200 Power Tower
OS 3.9 / CGX4 / OS4.0
Blizzard 210Mhz (overclocked to 266Mhz) 603e PPC with 25Mhz 040 (Overclocked to 33Mhz) 256Mb RAM
ZIV
CV64/3D
3.2Gb HDD + 20GB HDD