Those I'm not worried about. VDPAU or VA-API could be important, though. I don't recall what the MPEG-2 / MPEG-4 / x264 accel situation is for Ironlake. Does it work under Linux? Does it look good (have reasonable artifact removal / quality scaling and resampling)?
Ironlake: MPEG-2 & H.264 decoding with VA-API under Linux.