It’s a lot easier than you think!
This is as much as a reminder to myslef as a helpful hint for other people. If you need to convert a byte array to a string the you can use the System.BitConverter class and the ToString() method which accepts a byte array as a parameter. For more information have a look at http://msdn.microsoft.com/en-us/library/system.bitconverter.aspx
I used this for debugging SQL Server Timestamp columns so that I could get a more readable version of the column contents.