Newegg offers the PNY 120GB CS900 Serial ATA 6Gb/s 2.5" Internal SSD for $28.99 with free shipping. (Amazon charges the same.) That's $1 under our mention from a month ago and the lowest price we've seen. (It's a current low by $1.) It features read speeds up to 515MB/s and write speeds up to 490MB/s.

Update: The price has increased at Newegg; however, Amazon still offers it for the same price.