Thank you, darrens. The best way I could think of to incorporate Melbourne into a clean design was to make it entirely black and white, with the skyline in contours. Some people want corporate colors in their business cards so it's up to the client to decide if black and white would work for them.
Sorry Hawksdomain but I'll have to pull out of the contest. I'm going on holidays for two weeks and will not have computer access. If you want to use my design and are happy to wait two weeks that's great. PM me and I'll check my account when I return. Good luck to everyone else. It's been a fun contest.