If you just want a pre-runner style tube bumper (NOT like the Sh*ttyBilt ones), I would try out Off-Road Warehouse. I don't know where you are, but they have one in San Diego and in Escondido, CA.
I got one for my S-10 for about $150 including brackets. I just haven't put it on yet because I need to make some clean slots in the roll pan for the mounts and don't have the tools handy at my apartment!!! [img]/wwwthreads_images/icons/wink.gif[/img]