Hi and Thanks for all those variations! You've definitely satisfied my craving to see what a contrasting color would look like in there, that's for sure ;o)
In the end, I still think your entry #53 works best when I place it on the header of my webpage. . It's a great, professional design and I could see it as a nice logo on a business card, On the header of my website, I'm not sure if it's the winner. It's still in the running though :O)