I played the ret pally solo for a while in a few instances and found that I needed the addon "FCFS" to tell me what to cast when. I haven't played every class and spec, but this is FAR more complex than any dps I've played so far. I really don't see how you could do a 2-step macro and get any sort of decent dps, since it's so reliant on random ability procs to determine what to cast at any moment in time.