Phase One have now released a full version of Capture One v4 raw file processing software. If you have a copy of v3.x.x you can get v4 activated as a free upgrade. For a while now, SanDisk Extreme III cards came with a free licence key for v3.7.7, if you install v3.7.7 and activate it using the free key, you can then download and upgrade v4 for free.
Bit of a bargain really.
Download v4 here:
http://www.phaseone.com/Content/Downloads/CO4.aspx
Duncan