I was playing around with making some themes for Windows 7 and thought I'd share with everyone and I encourage you all to do the same.
This first one is called "Tomato". The wallpaper was grabbed from interfacelift.com and it's just using the default sounds/screensaver, but I thought it looked nice. I'm sure there will be more detailed themes in the future, but this will suffice for now. It was setup on a dual-monitor (2560x1024) system, so not sure how it will translate to a single monitor setup.
Just save this and double-click to install. Enjoy!
**Tip: Type "personalization" into your search box. To share your own themes, setup your desktop appearance as you like it, then right-click the "Unsaved Theme" and choose "Save Theme for sharing".