What's Your Setup?

Hey good people,

Just wondering what everyone's set up is to monetize your sites or to get some new ideas as to the use some of the available plug-ins.

I know you can use WSA with the 100_big_ones themes in conjunction with the Upgrades plugin, but not sure how to hook them together (WSA and Upgrades). Also, what most users like and don't like about ads in their face; what most of you guys deemed as enough free space vs premium paid space. What you've seen most folk will pay And so on an so forth...

Thanks for any insight from the WPMU pros.