For in-store pickup only, Micro Center offers the Western Digital 1TB Mainstream Serial ATA 6Gb/s 3.5" Internal Desktop Hard Drive, model no. WDBH2D0010HNC-NRSN, for $39.99. That's tied with our May mention for the lowest price we've seen. (It's also a current low by $20.) It runs at 7,200 rpm and features a 64MB cache.