It's alive, it's alive!
Congratulations! The candy store is open and the fun begins.
You may want to try to manually turn your screws through their entire travel to confirm free motion before putting your stepper to the test. This is especially true of the z and possible 'gumming-up' of the spindle if the machine has been sitting around awhile.
Keep up the good work and keep us posted. Its almost as much fun being a spectator, almost.