If he plans on holding them in the basement/etc, then yea FANS are a great gift (although he might not realize it now).

For the tech side of things, a really good switch (not a Hub) is a great gift. All depends on how many ppl he plans to have. Folding tables are also important, and chairs.

Taxman

"Any group is weaker than a man alone unless they are perfectly trained to work together."
- Robert A. Heinlein, Starship Troopers