How about having something like an Energy Acceptor. Like the one from AE2

To do what exactly?

To convert energy from external mods to RF (IndustrialCraft uses EU, RotaryCraft uses Watts/Joules, etc) It would be nice to have something that converts it all to RF so that I can store it all as my energy system doesnt accept certain mods

Well RotaryCraft already has its own system to convert to RF. And I believe that for IndustrialCraft there are also solutions already so I'm not sure this is really needed?