Logo for an Events Web 2.0 site

We require a logo for our events information/community website (http://www.mixedin.com.au) that targets socially active 20-30 year olds. It should be a unique and memorable logo that conveys a sense of fun and simplicity, whilst being mature.

Mixedin

Desired Color Scheme:
Select colour combinations based on orange, dark/light blue, grey. One logo for white background and one logo for orange background (same design)

Accepted File Formats:
Vector file (preference for Adobe Illustrator)

Design guide:

- The mixed and in should be separated by different colours or styles but no spaces
- Style should be fun but not childish
- Select colour combinations based on orange, dark/light blue, grey
- Giving the letters slight depth (3D, shading, rendering) may be an option
- NO images of glasses, bottles, clowns, streamers
- Possible other images small people, faces, spheres etc

Other:

- Ideally you will submit 2 logos: one logo suitable for an orange background and alternate logo suitable for a white background (i.e. same design but maybe different border or fill colour etc)
- Any artwork submitted to Mixedin, either in draft or final form, will be owned outright by Mixedin.