using SQL2008 R2 report server..

Is there a way to specify parameters for a report that can handle both prompted parameters (ie a SSRS Visible parameter with values from a query) and parameters passed from a website via URL/Querystring (SSRS Internal parameter type)?

We have a client requirement for several reports that can be accessed from the SSRS Web interface and also called from an ASP.NET site. The client would like us to give them a nicer UI for parameter picking when using the ASP.NET site.

I'd like to do this w/o duplicating reports.