i have had my mac pro for about a year and a few weeks and the hd in bay one (the stock hd, the ones in the other 3 bays ive added)... the hd in bay one is making a random chirp sound. ive heard a bad hd make a clicking sound but this is not the same, just a subtle chirp. it used to be once in a blue moon now it seems to be around id guess 10-15 times a week give or take. heres the info: ST3160812AS P: Capacity: 149.05 GB Model: ST3160812AS P Revision: 3.BQH Serial Number: Native Command Queuing: Yes Queue Depth: 32 Removable Media: No Detachable Drive: No BSD Name: disk0 Bay Name: "Bay 1" OS9 Drivers: No S.M.A.R.T. status: Verified is this anything to worry about? i have osx on the bay 2 hd since it is the coolest bay and i have a dualboot vista and xp on the bay 1 hd. if it did die it wouldnt be the end of the world but it would be a pain setting it up again. any thoughts and/or advice appreciated!