If you have a decent recharging setup, the osmotic enchanter is a much nicer way to get the perfect enchantments on stuff, plus gives you some other enchantments to play with. Focus of dislocation is good for moving chests and spawners around. A cursed spirit's blade enchanted with vampirism is very useful to have and can be got quite early. In terms of utility, etheral platforms and transvector binders are also useful to have.
If you like computercraft and want to automate every aspect of thaumcraft, there's also peripherals for that should you so wish.