If you're looking for Super Street Fighter 4 strategy, I am working on a Super Street Fighter 4 Guide for 1UP.com. We currently have strategies for all the new characters posted, and come next week we will be revising the original console cast as well. Included in the guide is videos for the Challenge Mode Trials for all the new characters, so check those out too if you're wondering about the timing on certain combos.
Of course with any fighting game, strategies will evolve over time and we will continue to update as new strategies appear, but this should be a great starting point for those of you looking to pick up any of the new characters.
We'll also be previewing the iPlayWinner Super Street Fighter 4 Guide tomorrow, so stay tuned!