Put efficiency on that and you will never need another digging tool again. Picks with enchants will always be as good if not better than a drill. I run with a diamond pick axe with repair, fortune, and efficiency, unbreaking before repair came along. I have a silk touch pick in my bags if needed but I usually just fortune everything cause I am to lazy. You do have to carry a shovel around with you if you dont have a wand of excavation...I wouldn't spend it on an Advanced Diamond Drill. Someday they won't be enchantable anymore. Instead, get yourself an Elemental Pickaxe from Thaumcraft and put Silk Touch and Repair on it.
When you can't enchant drills anymore, you won't lose the enchanted drill.I was debating if I wanted it on a drill, but then I thought HeffronCM's suggestion was better. Drills might not be enchantable in the future. Putting enchants on it is an exploit itself. Elemental Pickaxe it is!
Flux containment is a major mechanic to the mod and quite a lot of fun. We have the basic tools to deal with the worst of it. I'm looking forward to more advanced flux-related blocks and items.The problem with Repair is that it hurts the aura a fair bit from extensive use.
This is fine if you mine in a Mystcraft age or something, but if you mine to near your house you can end up with a ton of Flux