i have a towerhawk II tower , and i have a mediator and ppc in it..
sadly i had to saw and bend alot to make the motherboard + mediator etc to fit...
anyway i moved the motherboard from the small room to the big one and fitted it ATX style..
(this is an A1200 btw)..
wasnt a fun job but it went ok, and yes i wont recomend people to do the same as the tower is now useless for anything else (ie an standard a1200 with rbm zorro card etc..)
cheers
pps:jumpers, have no idea i threw the slow zorro stuff away in favor for mediator