One of the overlooked, but incredibly usable, benefits of SQL Server 2005's Management Studio over Query Analyzer are projects and solutions.
Not only is it great to be able to gather common scripts together into "projects" (e.g. "Server Maintenance"), and projects into solutions (e.g. "Insurance Administration Database"), but even better is the tight integration of source control into Management Studio - now you can actually have properly source controlled script repositories, even including common connections, with automatic change management. This will be an administrative and workflow panacea for a lot of teams, and will greatly improve script re-use.
Very nice.