I currently use Pokertracker and PAHUD only. I multitable on FT, UB, and Prima. Is there any new software recently developed that would be recommended?

Sixth Sense for table selection? Any BTPs use this?
AutoHotKey Scripts? Which ones are most useful for you?
Any other recomendations?

I'm just curious if there are any other mandatory / useful tools out there that I am missing. Thanks.