Oh man, I thought you had to stay in key to use modes, for instance the progression above thats in Gmaj. I thought you had to use the relative modes to the major, and play over the chord happening.

e.g.
C-lydian over C-maj
E-Aeolian over E-minor
G-Ionian over G-maj
and then you would have to switch keys for B minor

So really, you can use any key/mode as long as it has the three notes of the chord present in the scale?