Sony has a number of Alpha models (both DSLR and NEX) on special through March 5, 2011.  Most of the instant rebates are $50 off and include the new Sony A33 and NEX-3.  Additionally, the A900 has a $200 instant rebate; however, those are apparently in short supply at the moment.

See the full list of available Sony instant rebates over here at B&H Photo.