We were very impressed by the 256 GB Samsung 840 Pro when it came out late September. It was the fastest at the time, but OCZ has caught up already with the Vector SSD. The other capacities of the 840 Pro are equally outstanding in terms of performance, all at the top of their class.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips