I like the positive feeling of this one. The "o" says "Oh! I have an idea!" to me - it's a lightbulb and an "Oh! Eureka!" at the same time.
Could you show some examples of different fonts and colors that you would consider? I like that this looks clean and professional, but still positive and creative.
Just a thought. I was working on a job and stumbled upon this font, which feels very Metro to me. Actually, retro metro and at the same time futuristic. Also, liked the rounder shape of the O. See what you think.