On the topic of what gear we'll have on hand,
here is what I am going to try and fit in the car:
Heads:
EA iAMP 200
EA iAMP 500
EA iAMP 800
Walter Woods Ultra
Cabs:
Accugroove Tri 208
Bergantino EX112
Bergantino HT112
Bergantino IP112
EA CxL-112L
EA NL-210
EA VL-108 (two)
EA Wizzy (one or two?)
Epifani T-110UL
Epifani T-112 (two)
Glockenklang Duo
Low Down Sound 3-way neo 1x8
Low Down Sound 2-way neo 3x8
Low Down Sound 3-way neo 3x8
MarkBass 102P
Raezer's Edge Bass 10
Raezer's Edge Bass 12-400
Preamps/Misc.:
Raven Labs PMB II
Stewart UDP-1a
Summit Audio TD-100
Phil Jones Briefcase
I may or may not have room for my Kay, but I'm sure that we'll have one or two other Kays there, right? Mine has the Barbera bridge, and I have a Revolution Solo (which maybe Phil could help me fit to my bridge!

). If I bring the Kay, I'll probably leave a couple cabs at home.
Oh, and if people would like me to bring down a couple of my electric basses, just let me know which one's you might want to check out.