For VT 2.0 you should have the following:
- 2 megs of chip memory
- 8 megs of fast memory
- Bigfoot power supply
- processor board
- hard drive
- 1 RGB monitor
- 2 color composite monitors
Doesn't need the Bigfoot power supply unless you've loaded the Amiga with a lot of other cards like TBCs, an S-Video card, Vectorscope and a Flyer which takes a lot of power. Even so, the A2000 power suppy can handle a lot and I never had any problems when I had a lot of cards along with the Toaster. The A4000 Toasters had problems due to the weaker power supply when loaded with cards and expansion systems like the Highflyer came with bigger power supplies. It likes more memory but can get by on 6mb. That is what Newtek originally recommended. Does fine on 1mb chip ram but 2mb is better and 500K is not enough. The processor is mostly for lightwave and even with an 68040, rendering is not fast. The video switching, overlay and fading are done mostly in hardware and don't need a faster processor.
I sold my Toaster 2000 in the minimalistic configuration it came in which was: 1 A2000 with a Toaster 2000 card, a supra ram card with 6mb and an A4091 with a hard drive along with the Toaster 2.0 software and manual. When I bought it, I turned down the monitors which were analog composite. The original owners didn't use an RGB monitor It was an early 90s Toaster with the original Toaster label that went straight to the toaster software when you turned it on.
That is the bare minimum for a Toaster 2000. I really rocking A2000 Toaster system will have an accelerator with fast ram--the Zorro II ram is slow ram and limited to 8mb, a 2mb chip memory adapter and a couple of TBC cards and maybe a Vectorscope and S-Video card as well. A TBC card or 2 will really enhance the basic video processing and without them, you are very limited as to the video signals you can put into the Toaster. Without 2 or more, you will not be able to sync 2 different video sources and you will only be able to switch between the frame buffers and 1 video source and not switch live video.