Recently I got very interested in a S#arp Architecture - ASP.NET MVC & nHibernate based architectural foundation. In fact my prolonged 100FeetUnder project is going to use it. For all you who want to create a new ASP.NET MVC project I strongly suggest to consider S#arp option, it looks very promising and it is truly a time saver (of course at first there is a quite steep learning curve, but well, nothing is for free (except the beer ?)).
One example of S#arp based commercial app is FancyDressOutfitters and just a few days ago team that created this site decide to contribute and created a new demo project called Who can help me. This project is currently hosted at CodePlex here and if you got really interested here is a S#arp Architecture google group post about it.