need help with front door to wo application

Hi folks,

How are you dealing with the following issue: instead of having a  
static default index.html file in the document root I want to  
directly connect the user to a direct action in a wo app, so that the  
user can enter http://www.mydomain.com. Do you have an index.html  
that has a meta refresh tag or what? Would Apache rewrite be the  
correct thing here? As I have never done anything with rewrite.....

Thanks for any help
---markus---