Well, there's,
Tubes. - Logistics pipes (unofficial fork) has been updated to 1.5, not sure if 1.5.2 or just 1.5.1
"Sorting Systems" - lots of options, Infitubes (by the AMZAZING Immibis) for the most "put this item in this chest" feel, at its most basic level, however with a lot more complex options.
Apied Energistics (AlgorithmX2) seems to have replaced chests and sorting as their storage option.
For item detectors you could try assembly line (UE)
For amazing looking windmills, check out UE, Mekanism (aidencbradly) adds some very powerful, amazing looking windmills, heat gens (thermopiles) and solar panels. UE power is also a bit more realistic than IC2 power.
For cheap, good-as-diamond tools, osmium can work (Also Mekanism) however with tinkers construct (mDiyo), everyone's using those. TiC also currently currently has a "bug" where one can make 1 tin+3 copper into 4 bronze, creating loops with GT.
Now, the big one, frames, there is a (poorly documented, kinda WIP afaik, UE mod called complex machines, that has 3 parts, the first is (something) the second is laser based and the third is to do with airships, and I bribe these have frame functionality.
Anything else?
Also, before asking.
For cheap rubies, there's always the GT config.