Something that really bugs me about some 'amateur' websites, it the corny midi files that they have playing in the background. Why do people feel the need to do this? If I want to hear music I've got Winamp!

Another thing is excessive use of animated graphics. I've seen sites that are so 'flashy' that they would promote an epileptic fit. If people are looking at flash graphics, then they are not looking at the content of your site.

The moral of the story is.... just because you know how to add music and graphics, doesnt mean that you necessarily have to!