Correct Way To Create Indices? SQLServer Express 2005

Hi,

Apologies if this has been asked before, i've done a search but can't find a definitive answer.

I've created a table in an SQLExpress 2005 db using Server Managment Studio Express.

 My intention is to use GUID fields as surrogate PK's. I therefore wanted to add a additional index to prevent duplicate records being added to the table. Not having used SQLServer before could someone confirm or deny that this is the correct way to do this. The PK field [EPISODEID{unique identifier}] is set as a non-clustered index. And i've created a second clustered index using the two fields that create a unique record. I've added a screen shot if that is any help.



Thanks

Chris