To be ultra-conservative, you could do the timing belt now. In fact, I'd recommend it. When I replaced mine in '02, I remember reading that Honda recommends replacing the timing belt every eight years, or every 90K miles, whichever comes first.

As Brett said above, all the Integra motors are an "interference" design. This means if the belt snaps with the motor running, pistons and valves will collide -- which equals big-time headache.

And along with the timing belt, I recommend replacing both the timing belt tensioner and the water pump.