[johnm]

What does being a CS major (or not) have to do with creating a web site? That's a false dichotomy.

More importantly, given that you're a marketing+economics person and want to be an entrepreneur, you should want to learn how to build at least the first few versions of your site yourself. Otherwise you'll never deeply understand how hard/easy it really is, won't have the ability to tweak things for yourself in the future, etc. so as to be able to effectively and quickly adapt to the realities of your market. No offense but that is precisely the job that you're professing to take on as a founder of your first, small startup.