UPDATED FOR 6.0.3!
I updated the GCG addon to allow players to make rolling faster and easier.
It also shows a log who won and who owes them money, this is great when you forgot how much you owe someone because chat scrolled to far away.
A few screenshots:
Player Mode (If you are participating in a GCG game)
Leader Mode (If you are hosting a GCG game)
ALSO check this website...
Add your guild to http://guildilvl.com and compare your ilvls and progression between your guild members.