I think you are all looking for this:
Description:
This setup will allow you to, with only ONE minimalist control room, have as many reactors as needed, running SAFELY and FOREVER and WITHOUT manual interaction, with an uptime > 99%. Tested in SPP and SMP, on a 20 slots server. No noticeable increase in lag by observing FPS change.
-Function: continuous maintenance of IC2 reactors by:
Retrieval of Near Depleted AND Re-enriched Cells
Refilling of Uranium Cells
Cooling with Ice
Click the link for more (direct to computercraft forums, no adfly):
http://www.computercraft.info/forums2/index.php?/topic/4544-auto-reactor-uranium-refilling-ice-cooling/page__p__35330#entry35330