I used Wude's render of the Shenmue 2 mountains to make a wallpaper including some of the most popular SEGA Dreamcast franchises.
Here's what it looks like on my Desktop: http://puu.sh/12mvF.png
Here's the original version:
Please note that the original image of Wude's render was not so wallpaper-friendly so some resolutions do look a tiny bit distorted, but I have tried my best to keep the SEGA logo above the task bar.
Here is the download for all the wallpaper resolutions:
Resolutions included: 1366x768, 1440x900, 1920x1080.
If there are any resolutions you need that I haven't covered, then tell me and I'll make one for you, or you could just you it yourself
Link to Wude's original thread: http://www.gen2gens.com/t49-renders
You can PM me for the *.psd if you want.
Nintendo Network ID: Frozen-san