Execute "ujust" and marvel at what's possible right out of the box. If you used KDE check out some simple tips on how to configure cool windows effects. A little wobble makes all the difference. Browse the apps you can install, there are some pretty neat things in there you probably never heard of before.

And don't forget: once you got the things you want working, let the system fade into the background. No need to constantly tinker with your distribution unless you enjoy it.