A few editions back, I described several ways to customize your Android device. As you may recall, one of my main points was changing up the status bar using apps such as Date Status Bar, Memory Status, Status Toggle, and Battery Percentage.
That was quick - the Sprint's Epic 4G has already been rooted by the crew over at SDX-devs. In other words, now you can root that phone you don't have yet. It's a method requiring adb (Android Device Bridge) commands and thus desktop connectivity, but a one-click solution will probably emerge sooner rather than later. Note: it says EVO root, but the method works on this phone as well, don't let the filename fool you.