Agreed on this point. As for the mod in question, its called Extra Cells 2 - I've just reviewed the recipes for it, it should drop in just fine. Just be ready to craft a lot of processors (eep!), blue dye/powder, diamonds (upper tier drive cases) and certus quartz dust. ;-)
There was a question regarding an AE2 quest line; TPL will need to answer definitively, but from what I've seen of quest progression lately I don't believe there will be one. The existing set of mods allow autocrafting and storage styles that do not require AE. Storage Drawers are really nice, and I'm on the fence regarding Enhanced Inventories (the chest upgrade recipes keep bugging out, but its useful when mass-crafting runes for Botania - which is still needed, just not as tedious now).