Design a Website Mockup

We need a new, up-to-date design for our website: www.anawiki.com. Anawiki Games is dedicated to creating and distributing casual games for many platforms, starting with Windows, then adapting for OS X, iOS and Android. This creates usability challenges for our website. The current version of our website was designed almost 10 years ago, with desktop computers in mind. We would now like to provide the best experience for all users, tailored to the device they’re using, while simultaneously making it easy to see what other platforms our games are available for. We do not need website development/programming (PHP) at this time. Rather, what we need is a brilliant design with templates to allow us to create additional pages for new games and easily change the ordering of games on our front page. Our website has the following main sections:
 - Front page - where we display our latest and greatest new releases along with some popular older games - Individual game pages - individual, detailed descriptions of each game - Categories page - all our games, divided by category - About us - company description, contact info and explanation of what makes our games special - Newsletter sign-up page - for users to opt in to receive our email newsletter - Shopping cart and check-out pages - hosted by eSellerate or other vendors, but custom designed by us We want users to be able to view as easily as possible what games we have available in the following categories: - PC Games - Mac Games - iPad & iPhone Games - Android Games Furthermore, for each game (on its individual game page), we want to show what platforms it is available for, as not every game is available on every platform. Note: if someone visits our website using, for instance, Mac OS X, the download/buy button for that platform should be the most prominent, but other platforms should be shown as well, so that users know that a game is available for those other platforms. That way, if a user is, for instance, looking for PC games but browsing on his smartphone, he'll still be able to see whether the game he's looking at is available for PC. Each game is available to purchase through our website, but many are also available through third party distribution services like Steam, Mac and iOS App Store, Windows Store, etc. Thus, we also need to be able to display some indication that a game is available through these alternative channels. Some but not all games have trailers or teaser videos. All games have screenshots. Right now, each game has four small thumbnail images for the screenshots, but we'd like to be able to have more and/or larger thumbnails. Some game pages may have a full-screen theme. That is to say, the background surrounding the page's content area may be swapped out for some game-specific image to increase the game's appeal. Please take a good look at our current website to get a better understanding of where we're at now, then also take a look at websites like [login to view URL], [login to view URL] and [login to view URL] to see what our competitors are doing. Finally, here are some additional examples of sites whose look we like, though their functionality is different from our needs: [login to view URL], [login to view URL] or [login to view URL] We need a website that doesn't have too many distracting bells and whistles. We want it to load quickly and be attractive to people who are looking for entertaining games. Usability must come first. We are small, independent game developer, so we want the website to look professional, while maintaining a more personal look & feel and not giving the impression of being a "big, cold corporation." We’re open to ideas. Feel free to ask questions. We do not have higher resolution / better quality logo at the moment, so you will have to redraw it. We will need layered PSD files of the design, plus a working, well-coded HTML version.