RFTools Power Cells can indeed be linked together to transmit power. Or if you only need small amounts, ExU2 has a Wireless RF transmitter that can provide 80RF/t to a block.
Item/Fluid transport is easily accomplished with Ender Storage, with it's chests and tanks. And Thermal Expansion has an Energetic Infuser, as well as an item which will draw energy out of an item, so you could in theory get creative and move energy storage devices through an Ender Chest.