Hum, I have an annoying little problem :/. DF crashes immediately the second I try to build a building. Not sure what data you need to help diagnose, or if it's something on my end. Here's the pastebin of the crashlog http://pastebin.com/MryViMW1
I'm running this all on lion by the way.
Edit: Interesting, It works as expected when I move the save to an install of macnewbie.
Edit2: hmm, when I run DF directly and cause the error I get
2012-07-17 14:19:22.146 dwarfort.exe[1080:f03] Loading Maximizer into bundle: (null)
src/g_src/ttf_manager.cpp:139: failed assertion `pixel_width >= ttf_width'
/Applications/Games/DwarfFortress.app/Contents/Resources/df: line 13: 1080 Abort trap: 6 ./dwarfort.exe
Edit 3: Ahh, got it. It's the Masterwork font that you include that's causing trouble, replacing it with dejavu sans fixes it.
Edit 4: I think http://ge.tt/5fapzdK/v/0?c
is a suitable replacement, despite not being exactly the same and a bit smaller than the original masterwork font.
Edit SHUT UP ALREADY: huh, i've been unable to set custom professions and I get an intermittent freeze when using dwarf therapist. I've not been able to fix it so <_<