Colin,
You can put the toolbar items needed to be disabled into this Editor.DisableItemList string.
For example:
<CE:Editor id="Editor1" DisableItemList="save, help, CssStyle" runat="server"></CE:Editor>
For more details, please check the following link:
You can get toolbar item name from:
asp.net Chat http://cutesoft.net/ASP.NET+Chat/default.aspx
Web Messenger: http://cutesoft.net/Web-Messenger/default.aspx
asp.net wysiwyg editor: http://cutesoft.net/ASP.NET+WYSIWYG+Editor/default.aspx
asp wysiwyg html editor: http://cutesoft.net/ASP
asp.net Image Gallery: http://cutesoft.net/ASP.NET+Image+Gallery/default.aspx
Live Support: http://cutesoft.net/live-support/default.aspx