To get this out of the way: All of that hardware is horribly obsolete, and getting good figures on power consumption is difficult. Given the low numbers, this in itself presents significant error. You did say 'roughly' and 'approximate' though, so let's roll with it:
BFL 10Gh/s is
supposedly ~60W at the wall.
GAW Gury is
supposedly ~48W at the wall with the included PSU.
DualMiner in LTC mode is
supposedly ~1.5W on the USB interface. You'd have to take a bunch of losses into account in the vregs of your computer, its power supply, etc. Let's call it 6.5W for all 3.
Add those up, round that off a bit more, 120W. 0.120W*24h*30.5d*$0.11 ~= $10/month