Branding Samples

My previous post regarding Starbuck's recent branding move reminded me that, while I'm constantly designing on the job and at home, I'm rarely posting examples of projects. I've been working on quite a few logo samples for an upcoming conference that my work is putting on. The details are still fairly vague so I'm taking pretty broad stabs at it right now in an effort to pin down the direction we will end up going for this particular brand. These are by no means finished, and pretty rough, but a good place to start in order to get a better idea for what the requester does and doesn't like.