Im unholy myself now... for 3.3 i find this rotation to be the best dps i can do... IT,PS,BSX2,ScS... BSX2, ScSX2 and RP dump wenver all moves on C/D... rince and repeat... i use gargoyle wen ever hero is popped and some of my trinks/talents have procced...
The rotation all depends on if there is one target or multiple targets.
Single Target Rotation PS-IT-BS-BS-SS-DC-HoW-SS-BS-BS-SS-DC-DC then rinse and repeat (I put HoW into my rotation to always keep it fresh. I dont know how many times I see DK's have HoW up for the first 2-3 minutes of a fight and nothing after)
AoE Rotation PS-IT-Pest-DnD-DC-HoW-SS-BS-BS-DC (1st Rotation) PS-IT-Pest-BB-SS-DC-HoW-SS-BS-BS-DC-DC (2nd Rotation while DnD is on CD) rinse and repeat for such fights like trash in ICC