Kent, first off, let me say thank you for updating to 1.2.5 - my crafting factory will be able to churn out nukes once I start getting a large mining operation going. >=D
Secondly, RedPower2 has added computers with its latest release - I plan to use that to set up my own fully automated nuclear silo. It uses the FORTH programming language (ComputerCraft uses LUA), but it seems kinda like Java that I had to take back in college, so it ought to work.
With the advent of Redpower2's frames, I am also able to create a fully-sealed silo door - the only sticking point is setting up the doors themselves, as I need to ensure they can open and close fully.
Now if only I could use panels made out of Reinforced Stone...