Smitty,
Looks great! One thought, you might need to go slowly adding bioload to your young tank to allow the system's bacteria to adjust and stabilize along the way. One old saw I have always subscribed to is that nothing good happens fast in a reef aquarium. The diatom bloom is just one of several perfectly normal steps in an immature tank. You may go through another phase which includes green hair algae, also completely normal. Just go slowly and stay with it and all of these little things sort themselves out. Not preaching, just want you to succeed!