I know there are already a couple video's out there, but I'm hoping to get some more recent ones. It doesnt have to be anything special (5+ mins with music). Just, if you're in cz and get into a good nova town party (5 lvl 75+ mages when cz is really crowded, etc), turn on fraps ^^
Oh, and dont forget to open inventory when you're done. Best gain I've seen was 605m in an 8 person party (the combined humans in cz lost almost 5 billion coins xD)