FW: AS/400 questions...

Technically this shouldn't quite make the list (the machine's of 1991 vintage apparently), but my work's throwing out an old AS/400 - I know nothing at all about these machines but if it's getting slung then I may as well grab it and take a look at the thing... Model number is 9404, big tower-style case, 8" floppy and (I believe) 150MB QIC tape drive. It's got a console/terminal of some sort which is apparently dead (I haven't looked at the cabling - can I wire up just about anything as a console or do they use some strange protocol / signal levels?). Nobody knows how much disk or memory it has in it and it hasn't been powered up in years. There's a box of assorted junk with it, cables, keyboard etc. and someone said there's a load of tapes for it too... So, initial questions: Does anyone have any handy web links to AS/400 stuff so I can get some more information on this thing? (and AS/400s in general)

IBM? It may be that someone here has the tapes (or whatever) but I'm not sure (I'll try to hunt them out later). I don't know if I can be bothered transporting it home when I don't even know if it works and possibly don't have installation media if the system needs rebuilding!! cheers Jules