I've recently come into owning an Amiga 4000/040, and I was wondering what one of these OS packs would be good? I used the ClassicWB LITE on my A1200 and it worked well. I'm not sure how well the 4000 would handle the better ones, as I'm unfamiliar with anything better than a 020 and 2mb RAM!
The A4000 has an Apollo Turbo 4040 - 4060 (040 fitted), and 18mb of RAM (I should properly check, could be more). I'll put a CF card SSD in it instead of the clunky 6gb drive.
The link to the workbench packs is here: http://classicwb.abime.net/index.htm
I was thinking 3.5 or 3.9, but I'm not too sure.
Amiga 4000: Apollo Turbo 040, 128MB Fast, 40gb HDD, CD-ROM (needs internet)
C64: 1541U-II, MixSID, WiFi, LumaFix64
ZX Spec, A1200, CD32, MacPlus/SE, A500, BBC Turbo Master (NASA), 2600, Acorn 4000, VIC-20, IBM 5155, GameBoy