Logo for new social network / media site

I am developing a website for medical doctors in the field of General Practice (general practitioners). The website is a blend of a social network and a social media site. Think along the links of sites like linkedin, facebook, digg, reddit, etc...It is intended to be be for a broad age group of people of both sexes. There is nothing like of it of it's kind at the moment for this particular audience.

GP Insider / gpinsider

I want a logo design. I am creating this site to enable greater online communication between other doctors in the medical field. I started this company on my own and I am the sole developer. I would like the final design in various formats, eg adobe photoshop, gif/jpg/png.

- Sleek modern design - Use any combination of colours - Logo will be on a white or light coloured background - It has to look professional, not childish

- Something ugly!

Every design category has flexible pricing for all budgets. Logo design starts at $399.