My full-time job is split between coding and management -- this means I've got my GTD system going -- inbox zero and all that, and I'm currently using Remember The Milk -- after trying KinklessGTD, iGTD, OmniFocus, and TaskPaper.

However, I'm struggling with how to integrate that system with my case/ticket tracking system, FogBugz. I can't simply block out half the day for working down my FogBugz list, and half the day for working down my RTM list -- sometimes, sometime on the FB list is the priority and I should be working on that all day; sometimes something on the RTM list is the current priority.

I'm toying with the idea of looking at both FB and my GTD list, and creating a merged list each morning, but I'm not sure if that would be workable.

How have other coders solved this problem?