I'm not great on the latest prices.. But I'll try and give a guide...
A4000/030 with Cyberstorm + GFX card etc.. Probably £300 - £500 somewhere (The Picasso IV is worth a lot)
The other 4000/030 if it's almost standard around £100 - £200, but you may get more for it..
Towered Amiga 1200.. about £100 - £200 again I'd say..
Sealed 1200.. around the £50 - £100 area I think
The used 1200.. I'd guess £50 as long as there's not much yellowing...
No clue on the C64 front, but if you're gunna throw it out I'll pay postage for you to send it to me
The prices above are just what I think they're worth.. Some things may be over rated and some may be under.. But I think those are fair prices...
edit: spelling errors
