I have to admit I was worried when I first saw the mod spotlight, but it's more gentle than your average Buildcraft base.
Of course, now that I've said that, someone will find the ONE block in create that causes lots of lag and find the need to use 100 of them in a chunk or something lol
If item routers and conduits were a programming language, crystal chests would be the open source third-party debugger that sprang up because nothing shipped with the other stuff to get any insight
I was thinking earlier that a digital miner might feel kinda cheaty and now that I'm actually going through crafting it I'm totally fine with having one :D
I think the enrichment chamber, infuser, the osmium compressor, and some kind of smelting
you only really need the first three, smelting and crushing can be any mod (probably even the grindstone from AE if you really want to get down to basics)