Are you looking for a suspension or rigid fork?
If you're looking for a rigid fork, you have a few choices. Check out Kinesis. They make their Maxlight forks in both 1" and 1-1/8" steerers. Tange also has a cheap generic 1" rigid fork. I personally would check out Morati and get one of their titanium forks to match that Bontrager Ti Lite frame. Just remember that if your frame was made for front suspension, you'll need a suspension corrected rigid fork.
For suspension forks, you are rather limited to finding an older fork and rebuilding it or you may want to check out Marzocchi. It looks like you can special order a 1" steerer fork from them or
use a kit of some sort.
Also, are you willing to swap out your headset? Is your current one threaded or threadless? If it's threaded and you aren't horribly attached to it, then you might want to consider swapping it for a threadless one as that will open up a few more possibilities.