I have been working on some new wallpapers for everyone on the forums. Here is the first of many I hope to be creating.
Let me know what desktop sizes you use and i will make them available in those sizes. Right now they are in 1680x1050 format.
Will post additional sizes once I get a chance to chop them down. As for the 2048x768 I can try on that, but rendering an image of that size will take a long time, this one alone rendered for a total of 48 hours.