Want to start a business website but...

[chiye]

Wasn't sure where to post this, but I want to start a website for my business and sell my jewelry from that instead of Etsy, but I have no clue where to even start. Where would be the best place to buy a web domain? I would like to have a .com address but I dont want it to cost an arm and a leg, and I need to set up a secure payment system for when people buy stuff from me. Do I also need to know any programming stuff to put it together (I have zero programming knowledge >.< ), I really want it to look nice and professional but like I said I have no idea where to even begin. If any of you guys could help me out by offering advice on how to do this I would greatly appreciate it ^^.