OCZ is showing strong commitment to be at the forefront of SSD technology. Over the past year the company has released nearly a dozen different series targeting every possible market, from affordable netbook oriented products to enterprise-grade solid state drives for serversand data warehouses.They have had a great deal of success with multi-level cell (MLC) drives such as the Vertex we reviewed a few months ago. Priced at $230 for a 60GB unit and $380 for the 120GB version, these drives deliver an excellent balance between performance and capacity at their respective price points.At the other side of the spectrum, single-level cell (SLC) solid state drives tend to sell for more outrageous prices. For example, those opting for the SLC-based Vertex EX should be prepared to spend well over $1,000 for 120GB of storage. Even the smaller 60GB Vertex EX costs an astronomical $660, meaning that consumers are paying an incredible $11 per gigabyte.That is a hard figure to swallow considering its MLC counterpart costs a more reasonable $3.80 per gigabyte and today's conventional 1TB HDDs are fetching as little as $0.08 per gigabyte.