I love coloring my hair, so I can understand your excitement. The more vibrant the color, the better. I've dyed my hair a variety of colors, mainly various shades of blue and purple. I had a reddish color once, but that wasn't intentional. I've used manic panic, punky color, and ion brights. When I bleached my hair I always used ion's ammonia free lightener and 20 vol. developer. I think I did a post about it a while ago. I add a link to it if I can find it.
I'm really bad about taking pictures, but I'll come back and post some if I can find any. Until then, you can do a google search on dyed natural hair to see a few examples. Also, The Colored Curl
has some pictures of bright colors on natural hair. If I find anymore sites like that, I'll let you know!