I have 2 Western Digital Caviar Green drives in an external 4 bay eSATA enclosure and I'm looking to add two more drives. This setup will be not be used for RAID. There are some tempting seeming bargains on HDs available now but I've heard these bargain drives, even from Seagate or Western Digital, are not as reliable as the brand name implies. The warranties are also a consideration. I'm looking for a high (not highest possible) performance in my second pair of drives and thinking of a pair of Barracuda EP 3TB w/SATA III, 64MB cache, 7200 rpm. Should I be put off by the 1 year warranty? What are thoughts about Seagate versus an equal spec Western Digital? Thanks for insights.