Thank you salgud for your assessment of GQueues. I am fairly new to task manager programs. Although I do like GQ, especially how well it interacts with Google calendar and email, there are other features that I would really like to see added to it (besides the one you mentioned about the subtasks and next actions). One of these is the ability to add attachments. At this point GQ only allows email attachments.

I think that I am going to give Toodledo a try as it seems to have many of the features that GQ lacks.