Need to get everyone opinion on best practice.  I want to take an XML 
document and use it for client configuration.  Basically I want the XML to 
store user configuration information.  So when a user logs into a site - I 
get user attributes and match them up to certain attributes in an XML 
document to define what options a user will have available.  And then load 
the results into a user session variable that they can access while on the 
site.  

Should I use XMLTextReader to loop over each element and match up the 
attributes and load that into variables or should I use XPath to query the 
XML document using DOM?  Once I find a match is there a way to load the 
xml data into a structure (key -> value pair using C#).  Suggestions - 
Ideas?