Knobs are really not much to fuss over but there are a gazillion choices out there if you want to get creative.
http://www.twmshiftknobs.com/?gclid=...FYxDMgod-g0A6g
http://www.americanshifter.com/produ...d-Shift-Knobs/
http://www.koolknobs.com/samples.html
Lokar makes an aluminum shifter arm, as well as a nice boot/aluminum trim ring. At least one of those vendors above offers boots as well. Beyond that I have not seen too many choices... I plan on having a saddlemaker buddy sew me one out of a nostalgic leather jacket that was a hand me down from my Dad. Any interior shop should be able to make you a boot.