Zalary, at BrokenSky Designs, has come up with a clever little program that generates custom stylesheets that integrate seamlessly with Movable Type. Just create your masterpiece, and cut and paste the code into the appropriate template. I found all the info over at ScriptyGoddess.
For less than it costs to fill your car up with gas, you can have this great little program. There’s simply no excuse for not having a fantastic looking web journal. (Content, now that’s another matter….)