Here's something simple I put together for myself fairly quickly, but I liked it, and thought i'd share.
It's only in 1680x1050 though, so sorry if you have something bigger.
Noiseless version is available here: [link]
iPhone Version: [link]
iPhone Version (Noiseless): [link]
EDIT: Thanks to ~Year2000Prob
, its now in 1280x1024 too!
With noise: [link]
Without noise: [link]