Here is another globular cluster I captured a few nights ago - same basic method, 2 hours integration of 30 second subs. This time it is NGC 6397 "Blue Straggler" in Ara, a small but pretty cluster embedded within a rich star field.
Full details and high rez here:
http://www.astrobin.com/112546/
These are great targets for light polluted skies with a full moon out!