Ok, I was thinking about modding my 360 soon. I just got this refurb system back from microsoft, going by the disk tray is easily has the hitachi drive. Now do I just find a hitachi drive guide on the forum or is there more than 1 version of the drive and must I find special firmware and guides depending on the version of the hitachi drive? Thanks

As far as I know all the tutorials on this forum should help you flash the drive. I think all Hitachi versions are flashable. Just find the tutorial that matches your version .