Here's an interesting shift knob I was able to pick up for not a lot of money. I hope my hand doesn't burn from touching it when the sun is shining. I tried out a similar knob in a friend's car and liked it.
I also found a used Hall Pantera black anodized clutch slave mount through the POCA email forum. I bought it for a reasonable amount, but I wasn't satisfied with the spring return bracket. The bracket was made of mild steel and powder coated, but the coating was worn off in places and the steel underneath was rusting. I knew that Mark Johnson with IPSCO sells a similar bracket in stainless steel, so I gave Mark a call. It turns out that the bracket dimensions were really close, and Mark was willing to sell me just the bracket. I re-tapped the threads for the screws provided.