If you check Apple's Online Store its been available ever since it came out. The 10 Gig iPod doesn't come with the dock or the wired remote and you have to buy them (they are included with the 15 and 30 gig options however).
The dock is $59.00 Canadian from the Apple Canada Online Store.
I am hoping to get an ipod within the next couple of months. Originally I was looking at the 10 gig model. Then I thought the dock would be nice, and I may as well get the remote too. After doing the math I realized that it came to $577 before taxes. For another $20 I can get the 15 gig with all that stuff thrown in.