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 July mention as the lowest price we've seen. (It's also $12 below the best price we could find for a shipped unit.) It runs at 7200 rpm and features a 64MB cache.