<p>So far I've found the following components for building ASP.NET MVC views:</p>

<ul>
<li><a href="http://developer.yahoo.com/yui/" rel="nofollow noreferrer">Yahoo UI (YUI)</a> </li>
<li><a href="http://extjs.com/products/extjs/" rel="nofollow noreferrer">Ext JS</a></li>
<li><a href="http://www.webplicity.net/flexigrid/" rel="nofollow noreferrer">Flexgrid</a> (grid only)</li>
</ul>

<p>What are the other options that are currently available which inlcude a nice grid component?</p>

JQuery
JQuery Pugins
There are some grid plugins, which I have not used:
FlexGrid
JQuery Grid plugin
Another JQuery Grid plugin