Hi there
You can do it with a free content management system:
I built the Dr Sheep and the Aardvark site with Joomla, which is an open source (ie completely free) content management system. Not only do you get a professionally presented site (which you can put a template on to make unique), but behind the scenes you can hold all your images and strips, apply them to your pages and schedule them to publish on specific days (through a back-end admin section).
So, for example, I draw up three comics at the weekend, then (still at the weekend) set up pages to 'go live' on Monday, Wednesday and Friday, while I'm miles away eating biscuits and juggling squirrels.
In addition it's easy to manage banners, links, paypal donations, etc from the admin area.
If you want to see an example of the final product, check out the Dr Sheep and the Aardvark website (I've got links to some useful Joomla sites there too, which can help you get started).
Hope this helps
James
Dr Sheep and the Aardvark