title: Unique List<T> in .NET 2
body: <p>What is a </p>
  
  <ul>
  <li>preferably generic; </li>
  <li><strong>unique</strong>(IComparable/IEquitable) valued</li>
  </ul>
  
  <p>collection of objects for <strong>.NET 2</strong>?</p>
  
  <p>(<em>à la</em> <code>List&lt;T&gt;</code>, or an equivalent of <code>HashSet&lt;T&gt;</code> from .NET 3.5, but without ordered items)</p>