Wordpress Header Image

My blog currently uses the default "kubrick" header background:

http://biztoolsbrief.com/wp-content…header.jpg

I'd like you to redesign this image in such a way that I can simply overwrite the current .jpg file and have it still work with the current HTML code.

http://www.biztoolsbrief.com/

My blog currently uses the default "kubrick" header background:
http://biztoolsbrief.com/wp-content…header.jpg
I'd like you to design an image that I can drop in to replace the one shown above. I don't want to have to change anything else on the page, so the grey border will need to remain, but your design will replace the blue and white areas inside the grey border.

Rather than have text over the top of the background image, I'd like them to be part of the image itself. I need these words to be visible in the image:

Paul Galloway's BizTools Brief

Online Tools Blog and Newsletter

This blog is about online business tools, and I'd like the image to reflect that fact.

- Image as outlined in description. I don't have any particular color scheme in mind, I just want it to look good.

- No cursive or scripts for the text