I prefer installing Seagate drives - 5 year warranty and good track record.
Yes, it will work quite nicely. The WD drives are good, they have a three year warranty as compared to the Seagate's five year.Western Digital Caviar SE16 500GB 7200 16MB SATA-300 OEM Hard Drive WD5000AAKS in Canada at TigerDirect.ca
Would this work in the Mac Pro? Would it fit in the tray with no cable just like the stock drive?