I borrowed this off of a Blazer site. Print it our and put it next to your Birdman and Chauncy photos there on your desk for quick reference.
July 1 2009: Free agency begins, though teams cannot officially sign until the final cap numbers are announced. Last year the signing moratorium lasted until July 11, though I haven't seen a date yet for 2009. The moratorium runs through July 7, so signings can officially begin on July 8.
July 10-19: Las Vegas Summer League
July 22-25, 2009: Team USA Trains in Vegas
September 7-20, 2009: EuroBasket tournament
September 8, 2009: Spain vs. Great Britain
September 30th, 2009:
Training camp begins (for the Blazers anyway -- I couldn't find the start for the Nuggies.... Around this date...)
October 28th, 2009:
'09/'10 Season begins.