I came across some nice ideas this past week. Here's a few of them:
Some excellent ideas for Page base classes. There are actually 4 parts to the following article:
Here's a good link about adding a popup box to a delete button in a datagrid:
Delete confirmation in a DataGrid
Blogging for exposure... I saw this a long time ago, but was reminded of the post when Robert McLaws posted a list of his own links.