Can I change the hardware button mapping with CM9 (Samsung Galaxy S2)? I have a GS II and recently flashed to CM9  - I wanted to know if there's any way to map the hardware buttons back to the TouchWiz shortcuts - specifically the long press menu button = search (I really used that and seriously miss it).

On that note - I also wanted to know if there are any TouchWiz ports of only the shortcuts (right swipe call / left swipe message etc.) for CM9 or any other slim/clean ICS ROM.
With ButtonRemapper you can remap certain keys, but long press is currently not supported. It might be implemented in the future though, I suggest you follow the topic: http://forum.xda-developers.com/showthread.php?t=850464