Web Application Interface Design - 2 Templates

I am seeking a designer with a 'clean & simple' design philosophy to handle the graphical elements of my web-based application. The Brief is to design a menu system and 2 html pages with the boundary of our existing framework. The 'style' I am seeking is similar to the works of 37signals and silverorange ([login to view URL] & [login to view URL]). Upon acceptance of the project, you will be provided with complete guidelines for design, and I will work with you throughout. Final deliverables are HTML files & Photoshop (layed) files. When replying, please state estimated price and links to works that you feel match the style requirements (for intra/extranet works, screenshots are acceptable).