The conversation between Bob Dorr and Jose Fortuny also yielded some additional insights in the following discussion. Keep in mind that Bob and Jose were discussing very specific results from a specific test run and test environment. However, the conversation provides several useful tips.
Much as I hate to look at my own mug, I've started to post some video podcasts. Check them out at http://sqlserverpedia.com/wiki/Podcasts_and_Presentations. If you have a Zune or iPod, we've already got them in easy formats. I'm also interested in hearing your feedback as to what type of topics you'd like to hear about in podcast form.