your orig is ATA-5, the new is ATA-6 so no prob there
the orig says 4200 RPM the new 7200, so there will be higher heat involved, and slightly higher voltage drain
akso this will prob involve a phone in reactivation of XP pro
and your HDD prob has a special area loaded with recovery software/drivers which will no longer be avail, so you will be getting older generic MS drivers loaded if at all.
not familiar with hitatchi so just speculating here