You have this great game idea but no one who does awesome and inspiring concepts based on your ideas. You need a full team of creative folks who can manage not only 2D but also 3D? You would like to outsource but don't know where to look for help? Check out "Opus Artz" at http://opusartz.com 
Needless to say that those guys are some of the best in the industry. Oh and hey, I am even part of "Opus Artz".

I just wanted to give everybody the chance to check out "Peter Trappe" at http://www.petertrappe.com. He is not only  a friend of mine but also a great modeler and texture artist who can take on any challenge you throw at him. Check out his gallery/art and give the man a chance if you have a job that needs to be done. Peter and I have been working together in the past and he is very reliable. Check him out:
http://www.petertrappe.com