Thank you both for the answers! Having put some more thought into this I think I will try to work mainly from my PSM lists and use next action as a gateway to those lists.
mcogilvie: I agree regarding RTM web interface, its lacking to say the least. I use almost exclusively an iPad and an Android phone and the sync of the RTM service is the best in my experience. The Android widgets are also very good so I have a hard time parting from it. Having said that I am always open to new options so could you maybe shed light on what you use?
CJSullivan: I think I was mixing those two elements to much. Thank you for pointing out the importance of the distinction.