What type of braking system are you using?
I bought this nice 1 inch carbon fork at Nashbar, can do v-brakes or cantis or disc brakes:
Now, I KNOW I saw steel forks on Nashbar about a year ago. But not now.
No matter, you can yourself a nice steel fork here:
www.aebike.com
You MIGHT have trouble finding a 1 inch threadless rigid steel 700c fork with brake bosses on the fork blades. If you are going with cantis or v-brakes.
You can buy a steel fork and have the bosses welded to it for very little cost?