Cardinalphoto and Photozone tested the new Sigma 35mm f/1.4 lens. This is really an excelllent lens. And the Sony A-mount version should ship end of this month according to BHphoto (Click here). Youc an also save this search on Slidoo to get notified when there will be acutions on eBay.
P.S.: Mike Kobal compared the new Sigma 35mm lens wiht the Rokinon 35mm lens.