It would seem that selecting a facility (along with a date) is one of the
first decisions needed.  Looking through the archives I find:

Requirements (Ideal Location):

  Large Room (Arena):
    able to hold 150 people plus 25 work areas (tables) including demos and
vendor booths).
    25 Internet Connections (or switches to one to be defined)
    power connections for 25 stations (several computer systems each).

  Separate presentation rooms able to hold 25 people comfortably.

  Food services near by.

  Free 

Twenty five (25) is a number picked out of the air.  Its purpose is to
generate comments.  Feel free to correct this number.

Further looking through the archives, I find:

Michelle Lowman was working with Priscilla Gonzales with  Darren Everingham
(Re: Cafe - Phoenix College)

  I sent an email on this subject several weeks ago. Phoenix College has a
  site we can use that fits all of the criteria, and they are holding it
  for us for June 18th. I was under the impression that Mike Havens was
  coordinating this InstallFest. PC does require a fee for this space, so
  if we don't want it, someone (the coordinator, most likely) should tell
  them. The contact person at PC is Priscilla Gonzales,
  p.gonzales@pcmail.maricopa.edu 

  -Michelle Lowman

Someone posted about the University of Phoenix 

Someone else mentioned The Front.

Michelle, it the Phoenix College cafe still an option for mid September.

Anyone got an email for a contact at The Front?

Anyone got a contact at the University of Phoenix?