Keith, if you're computer-savvy, you can download the newest album for free here:
http://www.bigheadtodd.com/alltheloveyouneed/
While I don't think it really represents the sound that made BHTM a popular band way back when, some people really like it. And it's FREE.
As far as "classic" BHTM, that "Sister Sweetly" one is the big hit one. Some people really like "Beautiful World."
IROC likes "Stratagem".
I like "Riviera."
If you like live CDs, there's 1998s "Live Monsters", which is a good cross-section of lots of albums, or 2004s "Live at the Fillmore", more of the same, but newer.
If you're patient, we did a 12-camera HD shoot of our Red Rocks show last weekend, which will be out on CD/DVD in a month or two.