If you're on OS X I've been working on a fork of some homebrew packages [1] which could (and hopefully will soon) be a whole lot better.
There are some good getting started tutorials for using gnuradio [2] which I found very helpful when getting started. For different hardware, they still can be quite useful.
Gosh I swear I tried to follow the brew steps to install GNURadio a million times and after hours it always end up stuck in some really weird compilation error which I failed to Google out.
Me too, I became frustrated enough to try to fix it. My hacks on the upstream succeeded on a fresh install of OS X right before I left on vacation alas with some inaccurately documented steps.
Interested in being a tester? E-mail me (I would be very happy if I could help more than just myself and get some external verification)
I gave up.