SHE BOOTS !!!!!!!!!!
the problem was in the SCSI chip.
I orderd a new one from Vesalia, but as it seems it didn't work (prolly killed it by static electricity) i have now inserted the old one and the board boots up, hooked up a drive, installed my RTG board and booted up fine, ran sysinfo and some other utils and everything looked okay, so i'm now rebuilding it in the Mirage case.
O and btw, i'm using the original Busboard, i'll post on some pictures of how i strapped it in the case when i get hands on my sisters digital camera :-)