Hi-

It might be worth noting that PyQt4 is (presently) just needed for opening the uber_*py GUIs. Odds are, those might not be the most important features in your processing lifestream. Therefore, it might not be a huge deal to ignore PyQt4 stuff at the moment; for setting up FMRI processing, instead of uber_subject.py, it might be easier, more flexible, and faster to take an example from the afni_proc.py help (say, from Examples #9-11), and work from there.

That being said, to get PyQt4, we have suggested the fink route rather than that of Homebrew; see Step #4 here:
[afni.nimh.nih.gov]

*That* being said, if you want your Homebrew to brew more readily, in this case, there are two ways to go: change the permissions in your /usr/local/... path, or make 'brew' sudoable. As noted here, the latter is not recommended/supported by Homebrew:
[github.com]
(part of the larger discussion here: [github.com])
More about changing permissions of /usr/local are discussed here, in regards to this issue:
[stackoverflow.com]

--pt