Avoid browser specific html tags. Design for an 800X600 display, which is the easiest to view for most web surfers. These suggestions will apply to your main page, if you would like to provide content that requires a special plugin, Java, or large graphics save it for another page. Get them onto your site first. I have been on many sites with a lot of glitter but no gold.
Content is very important.
Be sure that what you have to say on your page is interesting and relevant. Provide an about page with ALL the station's info. Call letters, city of license, format, address, phone numbers, contact info, and station history, ect. Ease of navigation is essential. Make certain that all the features on your site are properly linked and are highly visible.