Every time I start a new map, I make primary use of a mod I haven't before and incorporate the new mod in many of my builds.
In my current world, it's Minefactory Reloaded. I have an MFR tree farm I am using for the beginning power source, and using many of the MFR machines. I am using conveyor belts and item routers for a few things. It's my first time using them for item routing.
My main power source is steam based. I use GT, and the new versions of GT have a steam upgrade for the machines. I have been running a 12HP solid fueled boiler, and just fired up a 36HP liquid boiler running off creosote oil and ethanol. (I should now be able to run Tier 2 GT machines continuously.)
I've researched everything in Thaumcraft and Thaumic Tinkerer, (I made my first full suite of thaumium armor.)
I have an AE based network now with auto-crafting. (Helps a lot with all the nested GT recipes.)
I made a working elevator using MFR.
I have an oreberry farm for a bunch of my ore needs now. I can also generate lava to centrifuge for gold, silver, copper and tin, and iron through obsidian and the industrial electolizer.
I haven't actually been mining for quite some time, although I am getting low on iron. Lead is also a problem.
My goal is to build the GT distillation tower, and finish incorporating my other golem farms into my network. I plan on eventually having 4 36HP boilers going for my base, but not even close to that yet.
That's my list for this map. Next map (1.6) will likely be something entirely new.