Personally I have the following:
- An accelerator (mine is a BPPC 060 but some 030 one will do just fine for most things) with 128MB ram (32 or 64MB will do just fine as well)
- CFIDE adapter (for example this one) and 8GB CF card as HDD
- Automatic mouse/joystick switcher (amigakit sells these)
- 4x multi-player joystick adapter (parallel), for some multiplayer madness (amigakit for example)
- SCART lead for connecting the amiga to my 47" LCD TV (unfortunately SCART is mostly missing from TV sets sold in USA)
- PCMCIA network card (3com)
- WHDLoad (licensed of course)
This thing is used for games and demos.