As in all good things, God is in the details and I particularly like the use of computers and the other tech items. Hopefully the laptops actually have a version of the password hacking that features in the game. The most annoying thing in LARP for me is the time-wasting tasks that are in place to simulate things like armour repair and crafting.
If you're Science skill isn't high enough to work up your own Robco Industries Terminal, Chis @ Geek Weekly has some ideas for making couple of simple FO3 props1:
Of course if you are felling more adventurous take a look at Greg Aronowitz's Barnyard FX webpage for some advice of how to make that Ghoul make-up PIP-Boy perfect2.
1 A Repair skill of 20+ is all that is required.
2 WARNING: May cause Severe Radiation Poisoning.