newegg offers the Mushkin Enhanced Callisto Deluxe 120GB Serial ATA 3Gb/s 2.5" Internal Solid State Drive
, model no. MKNSSDCL120GB-DX, for $114.99
with free shipping
($0.96/GB). That's the best non-rebate price we've seen for a 120GB SSD. (It's a current low by $37.) It features read speeds of up to 285MB/s and write speeds of up to 275MB/s. A 3.5" bracket adapter is also included.