My ranked ordering:

 	Kingston
 	Montreal
 	Ottawa
 	Toronto

It may easier to fly to the non-Kingston cities, but train/bus is easy and 
it's in the middle of the Toronto/Ottawa/Montreal hub.  Ridesharing would 
be easy and people could get there after work for the next day.

Library geeks from around here have probably been to Toronto, Ottawa, and 
Montreal (and Hamilton) fairly recently for conferences.  Not Kingston, 
though.  Plus I want to visit.  And Wendy Huot's ready to help set things 
up, and Michael Vandenburg and Martha Whitehead are there ...

For time, I prefer May/June.  What about the weekend of Friday 14 May - 
Sunday 16 May, maybe starting Friday night and happening Saturday, or 
starting Thursday night and happening Friday?  That's the weekend before 
Victoria Day.  (The 24th of May is actually on the 24th of May this year!) 
Is there any American holiday happening in there?

Bill
-- 
William Denton, Toronto : miskatonic.org www.frbr.org openfrbr.org