A person can be a very very strong technical geek, however can make a very poor looking website. There really are two types of sites. The ones I do are highly technical, used in house only for corporations. High database use and specific functionality like keeping track of product defects on the production line etc. Then their are websites for the outside world. The outside world websites need a graphic artist. Most technical people are very good with the code but not so good at the pretty. An outside world website to be professional needs someone highly skilled in graphics art. Those people are very good at pretty. Usually not really good at the guts of the sites but that is why they have geeks who are.