A great looking logo for my website

UPDATE 8/01/07: Thank you all for your submissions. For the next few days I'll be going through all the submissions and decide upon my top 5 and then choose the final winning artwork.

7/5/07: I'm looking for something creative that will be the logo for my site. It'll be in the corner of my pictures, used on the site itself and over time will be something quickly recognized when people see it. Right? :)

I came up with a bunch of sketches (below), but I simply don't have the talent that I know some of you do. So if you are a master with photoshop, you could score yourself a RO/DI system!! (More info about the system I offer in the left column)

If you want to use a few colors, that would be fine. Or perhaps make it so it looks like a watermark. Even the shape is up to you. I'm the final judge though, so let's see what your imagination can dream up. A few things to keep in mind:

The final product will be mine to use forever. :)
The file format should be something I can alter - size, color, etc. It may be best to save it as a vector graphic.
The background should probably be clear, unless you've got something better in mind.
The logo will be used on my site, my pictures, and products like the RO/DI units I sell.

Entries accepted during the month of July. -- Marc

Sketch #1   Sketch #2    Sketch #3

Please don't feel tied to my sketches, because there's a good chance you'll have a much better idea.

Another angle worth considering is my avatar that I tend to use everywhere I log on.

I've decided to post the images that are being submitted because everyone is so creative.