What is a good cold air intake for a 97 Honda Civic HX?

It's an automatic and needs an air intake. I just bought it, and the air filter box(housing) is completely gone. I really don't want to drive it without anything in there at all because I'm guessing that's not very good on the engine. I don't want to pay more than $200 and I'd like to pay around $100 (or less) if I can get a good one for that. I don't know that much about car engines so can someone point me in the right direction on this?