20 unique, new icons for website

For our website we need 20 unique, NEW icons. We like to have Adobe Illustrator workspace file (AI) or better a Adobe Fireworks workspace file (a special PNG like Photoshop PSD). It is important that the work files have to be vector graphics, NOT pixel. Payment will be done via escrow. When the project is finished we will own all the rights of the work done. Please only bid if you agree on the above!