Installing MVC directly on your web server is one option, as then the assemblies will be installed in the GAC. You can also bin deploy the assemblies, which might help keep your server clear of pre-release assemblies until a final release is available.
Phil Haack posted a nice article a couple days ago about how to deploy MVC along with your app, so it's not necessary to install directly:
http://www.haacked.com/archive/2008/11/03/bin-deploy-aspnetmvc.aspx
Matt Rudder
2008-11-05 22:47:06