Now this what got me into the Amiga in the first place not so much the games although burned a many hours Dungeon Master/II and Shadow of the Beast
"Now in regards to the 2000. You say that the Toaster can do a 24bit output? If that is the case, are there any major advantage to having a Toaster 4000 over a Toaster 2000?"
The toaster 4000 takes advantage of the AGA chipset in certain repects. I think for example you can view 256000 color real time previews of rendered Lightwave animations. You can still use it inside an A2000 I have one in my A2000, I am stuck with 1 meg chip ram but you really need 2 meg chip ram to fully take advantage the Toaster 4000. The Toaster 2000 might be a little more forgiving in that regard, however I remember most Toaster 2000/Amiga 2000 systems that were being used for serious work had been upgraded to 2meg chip ram. The Toaster 2000 can not be connected to a Flyer board like the Toaster 4K.