Creative design requried for premium content site

BRIEF BACKGROUND: We are developing a crowdsourcing website that will offer prizes for user content, and offer premium content through a monthly subscription. All content will be text - no video or photos will be exchanged. Users will enter content which will be voted on through Facebook Likes and Google +1's. WHAT WE NEED HELP WITH: We know the business model and the website intent extremely well. We need a brilliant creative designer to take our thoughts/summaries/text and come up with an outstanding mockup of the pages. We anticipate there will be 6-8 pages. Greater detail will be provided to the winning service provider only. WHAT YOU SHOULD PROVIDE: Please only provide URL links to your best 5 designs. We want to see live sites you have done. Do not provide an entire portfolio - only your 5 best. Experience with crowdsourcing websites is an absolute advantage. So we know you have read this brief, please include the word 'crowdsourcing' in your first line so we know :):) Any questions, please let us know. Jackson Group.