yes. That shud be pretty easy,
open up the case, trace the ribbon cable from the main hardrive, look for the connection that says "slave" and connect it in there, connect the power connection in too,
shutdown the PC and reboot it into the setup screen (either pressing F1 or F2 repeatedly depending on your system type)
check that the primary slave recognises your new harddrive
that shud pretty much be it.
any problems write back
Dave
January 2009