This should answer most of your questions.
http://forums.quintefishing.com/phpBB2/viewtopic.php?t=2001
While I'm no expert at the fine art of fall fishing (yet), speeds between 1.3 to 2.5 mph are fine. You could troll with a large bucket or two as a poor man's drift sock to slow you down until you get your kicker. Your bait selection is right on the money. Colour wise, firetiger, clown, perch and especially PURPLE work well. Offshore boards are superior to the big collapsible type, especially in wavy waters. Riggers work but it seems that most fish are caught off the planer boards. You don't have to go extremely deep as it seems most fish suspend over deep water, hovering around the 30 foot mark. A combination of snap weights with planer boards can be deadly as well to achieve depth and stealth. Anyways, hope this helps some.
cheers
Ken