I just upgraded to a 1.67ghz 2gb powerbook 15. I was previously using a 1ghz pb12. My question involves Spotlight and overall performance. It is typically suggested that you disable spotlight to improve performance. Now that I am sporting a much faster processor, more ram, and a faster HDD, I am wondering if keeping it off is really saving me much. Are there benchmarks anywhere comparing performance with and without spotlight enabled? I love using it on my iMac and would be happy if I could use it on my powerbook. Well reasoned anecdotal evidence would still be helpful if there is nothing really solid.