creating online store with wordpress!?

I want to create an online store with wordpress. i read many articles online about WP-eCommerce. I’m not sure how to use it, i know nothing about programming & i have no experience in hosting.
i want an easy step by step tutorial to help me create the store.
I read it is only about plug-ins & uploading themes to my hosting.
I’m not sure what to do, I don’t wanna pay money for the domain & the hosting then realize that it is hard for me to work on the store & upload it to the hosting.
all tips are appreciated.

Domain and hosting should cost $50 to $90 per year.
Take a look at this web hosting comparison:

http://hosting.mestore.us

Have your website created for no more than $475 at:

http://www.samwilson3d.com

Premium Web Store Theme for Wordpress – WP e-Commerce Theme 2010