Dell.ca currently has NBA 2K11 on preorder for only $49.99 (regular price is $59.99). The game will be released on October 5, 2010 and will probably ship a day before that.
Dell shipping is usually fast, but you probably wont receive the game until later in the week (October 7 or 8). If you really have to have the game asap. You can preorder at Dell.ca, purchase the game at Future Shop or Best Buy on release day and keep the receipt. Once your preorder from Dell.ca comes in, return that sealed copy to Future Shop or Best Buy for a full refund.