I had the card too, but I was unable to get it to work with the i810. RMA didn't work either, ATi says they're working on the problem.
From reading user reviews it appears that the SDR PCI is beaten at 3D by the V3 3K PCI. It was rated pretty highly as a business card (good 2D), and it has DVD hardware assist and S-Video out. Hot Deals forum had something about getting the SDR PCI and an MP3 player for cheap at Office Depot (around that price you mentioned). I would check that thread out.