Here's information on copyright:
http://www.cipo.ic.gc.ca/eic/site/ci...h_wr02281.html
When you post the comics, make sure they're marked with the copyright symbol (©) and date. You can register the copyright, but it isn't required. The very act of creating the work creates the copyright on it.
For the website, I'd look at using a WordPress blog for it at least initially. There are many templates you can use, and you can pay a small fee for various upgrades, for everything from a custom design to your own web domain address.