I played with the EVO in the Sprint Store yesterday. I almost drooled!
I'm getting my hands on one soon enough, and trying to absorb all this info into my head prior to getting it.
So the way i see it, rooting allows you to be the system admin to delete oem apps and be able to flash a custom rom..
the steps -> root, clear both caches, flash rom and enjoy?
(as you can tell, i am a NOOB)