Right so, I've gotten back to minecraft recently and have been addicted to Brink of Chaos because of, but not only, Thaumcraft 4.
As I've been really into thaumcraft and stuff, I wanna suggest adding some addons to enhance the mod; like Thaumic Tinkerer, that adds a bunch of new and cool stuff to play around with.
I'd also like to suggest the addition of the mod ChickenChunks. This mod adds a block to let the chunks loaded when a player is not around, so your farm and stuff will still grow and work nicely. I don't know how this is going to work towards lag, but as not many players have been on lately I assume not many people will be using this so it shouldnt be causing any lag.
Thanks