REQ: Sound Effects

anyone have any idea where to find different ring sounds in midi format? I'm
not looking for ring tones, have more of those than what i'll ever use. What
I want is various sound effects for the different features - net msgs, test
msgs, etc... Specifically, I would like to find some of the different beeps
and such from shows such as Star Trek (you know, the communicator sounds) or
various tech/sci fi shows with just short little beeps, bells, whistles, and
whatnots.

I really would be most grateful for any help here.

By the way, they will be for an I90c.

Thanks