I have Curcial M4, Samsung 830, and Agillity III. For the Price the M4 is by Far the better Choice GO FOR IT before it sells out..
1) The Agillity III, The performace is the same on Sata II port as it is on a SATA III port. Reason I dub it a sataII SSD in a SATA III wrapper. Only buy if price is Less than 75% of a Curcuial M4, or Samsung 830.
2) Do NOT go by manufs "aqdvertized" performance - They advertize atto benchmark for Sequencial reads and writes. A) Atto was designed for HDDs and uses compressed data NOT real Life. B) Sequencial performance is the LEAST Important parameter for an OS + Program drive.
3) I do Not recommend Sandforce (SF) based drives, (espeally OCZ) unless a Great price differencial. SF controllers Performance takes advantage of compressing data, For an OS + program drive, compressability is low.