What Web server do you folks like?

I'm considering Abyss Web Server X1/X2 

My needs are:

 . running ASP/ASPX
 . mime support for .mp4
 . .net 2.0-4.0
 . a C# SOAP service.
 . SQL Server (and possibly PostgreSQL) as the DB.

Thank you!


My Platform
==========
Running the 4.5 Alpha LiveCD in Oracle VirtualBox
Allocating 2GB of RAM and 2.54 GB disk space,
on an i7 with 16 GB of RAM.