I don't really like the hd texture packs that I could find for ic2 and I play using hd textures for minecraft so I decided to make my own textures. I only plan on doing the generator and machine blocks right now, the other textures are more complex to do right now and it's easy to find something usable in vanilla resource packs that works with copy&paste&rename. The style I'm trying to use is the vanilla ic2 style in hd. Therefore nothing fancy, just blocks that have the same base and a few details that makes them distinguishable. That way they can be used with nearly any hd resource pack.
Here is one screenshot which shows the basic machine block, two electric furnaces and the sorting machine. A few more screenshots can be found on my homepage where you also find the download(s). Right now there is not much done but I will continue working on it.