If you're into single speeds; Kona, Bianchi, Cannondale, and a few smaller makers do make rigid SS's. Multi-geared, I think that you may be SOL with a stock bike, but I know that a few makers do make custom bikes, made to order. Spicer cycles has nice rigid forks for MTB's, too. For 1500, you could buy a very nice hardtail and order up a Spicer fork...