logo design

I need a logo for a new online price comparison company. The guidelines are as follows: 1. Clean and modern logo in neutral colour as we will put on many different backgrounds. Needs to work with the colours of the existing site [login to view URL] Needs to improve on the logo currently shown on that site. 2. Need to have fun online feel and ideally incorporating circles. 3. Please provide MOCK UP. Different and customized samples will increase your chance to be chosen. 4. Additional work will be provided to the right candidate. eg need to improve the look and feel on the ecompare site, banner ads, character design etc. I look forward to work with you. Payment can be made with the escrow function.