Minimal flash on the site. Flash should be used to enhance a website, not be the entire thing.
As someone mentioned, elimination of splash pages. Splash pages are 100% of the time pointless. they're just another thing preventing visitors from getting the information they want quickly. If I want to know if and when a band I like is coming to my city for a show, I dont care to see a huge image of the bands name and logo as the first thing that pops up. I can see that just fine 1/4 of the size in the banner at the top.
When band websites DONT resize your browser window. Its annoying, and pointless, and I resize it back anyway.
Recap:
1. Use flash only to enhance your site, DONT build the whole thing from it.
2. NO splash pages, they are obstacles to information.
3. NO browser window resizing, its annoying