OCZ announced hte future availability of a 3.5" SSD.
Known as Colossus, this SSD will offer storage space ranging from 512 GB to 1 TB at an unknown price. It will use a new design based on two Indilix controllers set in a RAID 0 volume. If one considers that a single controller is able to deliver at least 150 MB/s in reading and writing mode, when associating two of them one could be close to the saturation of the SATA II format, 300 MB/s. Prices have not been unveiled, but one can extrapolate based on the 250 GB 2.5" OCZ Vertex: 800 Euro. So, it could give the 1 TB model around 2000 Euro as one does not need to get the thinnest engraved memory chips, as there are plenty of space in a 3.5" enclosure.