From Mr. Fong's website:
$6,250 for 90 minutes of my time, and as I explained when I announced my participation in this auction - this is a consultation only - no sexual favors.
Some people obviously value advice about how to bounce a flash very highly...
Seriously folks, it's not that hard. See Wendell's thread http://www.dslrusers.net/viewtopic.php?t=24944&postdays=0&postorder=asc&start=0 to see some examples of how professional photographers modify their strobes to get better lighting results.
Cheers