I hardly cube anymore, but I tried to use 3OP/M2. My memorization method for 3OP was A through H, and for M2 was A through Y or something (never got to it) http://www.speedsolving.com/wiki/index.php/Speffz
<-my plan for the edges.
I also tried using the story method, but for the corners i tried linking all the words without adding any extra. I always started on A, so eg. A E C (An excellent corner) I just memorized in cycles, so eg. (A C E G)(B D)(H F)
Now for the edges i would use the story method and memorize 4 letters at once.