These mods aren't very well known, but I would highly recommend Silent's Gems and Super Multi Drills. Silent's Gems adds gemstones and helpful utilities, and super multi drills adds RF Powered drills, like in IC2, but with compatibility with tons of mods like Tinker's Construct, ExtraTiC, and Silent's gems. (Drills upgradable with RF storage, wood cutters, and more)
You're welcome. Hope you like some of them! Almost all of them are on curse, so you shouldn't have many problems. (some are on minecraft forum though) If you are confused with any of them, ask me or just look them up an read their description.