It comes with a 250W ATX PSU,
3x 5.25 inch drive bays, 3x internal 3.5 inch drive bays.
However there is only one floppy drive facia on the front (see picture).
You may also require a PCMCIA Right Angled Adapter:
http://amigakit.leamancomputing.com/...roducts_id=690
All A1200 towers require this to make the PCMCIA slot usable.
Cash OK.