As someone already suggest Im sure students would do it for a portfolio or there are many freelancers out there. If you are not familiar with web developmet and if this will be ecommerce I would suggest paying or finding a student to do it for you, that way you can focus on marketing.
make sure their reputable. See thier potrolio and previous clinets. You could always email thier past clients and ask if they were satified with the service
Research! Research! Research! Say you are thinking of starting up an online collectable store. Search the market. See who is already running this business. See whose business has the number one spot on the search engines. Ask yourself why?
A quick marketing tip in the search engine type in link: and follow it with the name of the business that ahs the number one spot.
Etc link:
http://www.numberonespot.com then you will see who has listed their sites. This is a good way to research and give you marketing ideas.
Good luck