Yeah that's a pretty good deal, the F120 is listed as having a lower IOPS rating as the Vertex 2, but the difference doesn't seem to make much difference in real world performance, and only a tiny difference in the benchmarks:
http://www.storagereview.com/corsair...120_ssd_review
It's kind of annoying though, with Sandforce basically playing with the parameters of the chips for different manufacturers. Makes it hard to compare apples to apples.