Today iGTD released another update. I don't know if Bartek has help or is just superhuman but this program just gets more and more polished with every update. I am using it for all of my task management and there are currently about 250 tasks being tracked in oodles of projects.
Granted I am a HUGE fan of the OmniGroup applications, OmniFocus really has a contender here. As an aside I'm now officially on the inside of the "sneaky peak" for OmniFocus but I don't have time to really give it a look-see until this weekend.