Is there a best way to store XML to database (SQL 2005 Express Edition)?

I'm doing a sample program about online bookmark, I have created two fields

UserID Uniqueidentifier
ContentOfBookmark I'm not sure what kind of field (ntext, XML or other field)


I plan to store the following XML content to the field ContentOfBookmark, first I set the ContentOfBookmark field as ntext type,
and restore the XML Content from the ContentOfBookmark field to a XML file, then use XMLReader to parse the XML file.

Now I heard there is a new XML field in SQL 2005 , but I don't know how to use it.

Do you think which kind of field I should use?
what I think about the bookmark is correct?

Is there a better way to resolve the hierarchical directory structure? If I store the structure in XML file, I think I can use many XML functions to operate bookmarks and folder easily such as add, delete bookmark; add delete folder...




========================== XML Content (ContentOfBookmark)============================================

<?xml version="1.0" encoding="utf-8" ?>
<Folder Name="Root" Id="a6dce8fe-749c-4e38-ab2f-3d03d9711b3d">
<Bookmark>
<Title>CodeGuru Forums - ASP.NET</Title>
<Url>http://www.codeguru.com/</Url>
<Description>This is a good site</Description>
<InputDate> 2005-12-5</InputDate>
<IsPrivate>False</IsPrivate>
</Bookmark>

<Bookmark>
<Title>We'll e-mail your press release</Title>
<Url>http://www.dpdirectory.com/</Url>
<Description>This is a good site</Description>
<InputDate> 2004-12-5</InputDate>
<IsPrivate>False</IsPrivate>
</Bookmark>

<Folder Name="Card" Id="b8dcf8fe-749c-4e38-ab2f-6d03d9711b8j">

<Bookmark>
<Title>Welcome to the bank</Title>
<Url>https://www.myepassporte.com/</Url>
<Description>Very Good</Description>
<InputDate> 2004-08-5</InputDate>
<IsPrivate>True</IsPrivate>
</Bookmark>

<Bookmark>
<Title>Keystone DreamCard</Title>
<Url>https://www.mydreamcard.com</Url>
<Description>Please note</Description>
<InputDate> 2004-08-5</InputDate>
<IsPrivate>True</IsPrivate>
</Bookmark>

</Folder>

</Folder>

======================= XML Content (ContentOfBookmark)===============================================