If I had a better internet (mine is shyte, no two ways about it), I'd totally give trolling SL a try. It sounds like a blast. Makes me wish I had known about it during the heydays when SA was still the leaders in trolling efforts.
It's got a surprisingly large learning curve. I never made it past a day or so before getting frustrated and giving up. Plus it's pretty expensive once you get bored with the free shit.