Default vs Named instances

I have a server computer named 'X' and I would like to install 2 instances of SQL Server 2005

1. SQLTEST

2. SQLDEV

During installation. if I select Default instance then it will name my sql server instance X . I don't want that. I want to have essentially 2 named instances to make it clear to the users that they are using a test and dev sql server. Whats the best way to do this? I am open to suggestions if there is a different way to do this.

Is it required to have a default instance? Can I have 2 named instances X\SQLDEV and X\SQLTEST?

Also, on the SQLTEST I will be installing reporting services. By not having a default instance will it cause issues for the SSRS installation.

Please help!

Thanks.

You certainly do not need a default instance on your machine. You are fine installing two named instances side-by-side. Essentially, the default instance is merely a named instance that we call "MSSQLSERVER" by default. As for specific RS questions, you may want to search/post in their forum for side-by-side recommendations.

Thanks,
Sam Lester (MSFT)