The Resurgence is a great ministry. They have several incredible pastors and authors as well as a very talented group of artists, videographers and graphic designers. They know how to present things well. And over the last couple of years they have been releasing some really neat wallpaper. Here are a couple that are adorning my computer from time to time.
They have a Spurgeon wallpaper. This is my personal favorite.
They also have a Jonathan Edwards wallpaper.
As well as a Martin Luther one.
And a really cool Sampson wallpaper.