Good time to pick up "De-Coding DaVinci" by Amy Welborn.
http://www.amazon.com/exec/obidos/tg/detail/-/1592761011/102-0072262-3758572?v=glance
I see Amazon has it (used) for under $6.50 now. And Amy Welborn is hugely entertaining (as well as smart as a whip.)
I've read it. It's crap.
Tnx for the reference. I nearly picked it up at Waldenbooks a week ago, but having not read the Da Vinci Code I felt it would not be fruitful for me at this time. I have read many of the sources referenced by the author of the Da Vinci Code, though, and it is a fun subject to play with.