Three places that are definitely worth checking out for time to time if you love Street Fighter 4 match videos are LordAborigineSF4's, Frame-Advantage's and IPlayWinner's YouTube channels.

LordAborigineSF4 is always picking up matches from competitions held in Japan. On the Frame-Advantage page, there are sets from BattleField Arcadia #9 going up and on IPlayWinner you can find bouts from the NorCal Regionals, held awhile back.

Here's an older match from LordAborigineSF4's channel showing Daigo (Ryu) vs. Iyo (Dhalsim).