shunk

This plugin generates table tags with simple operations. 
You can merge cells by dragging and clicking, and enter the characters directly in the table. 
VERY EASY!
<h4>How to use</h4>
<ol>
<li>First, please choose the size of the table (rows and columns). You can type on the keyboard a number, click on the spinner, or turn the mouse wheel.</li>
<li>If you want to use <th> element instead of <td> element (or vice versa), please drag to select the cells you want to convert, and click on the “td ↔ th” button.</li>
<li>If you want to merge cells, please drag to select them and click the “merge” button. Merged cells can be undone in the “split” button.</li>
<li>If you enter characters in the table, please click the “chars” button, and be set to an input mode. When you are done, please click on the “output” button.</li>
<li>To apply the CSS, it is possible to set the class attributes for the cells.</li>
<li>All operations can be undone by clicking the “undo” button.</li>
<li>When the table is complete, please click on the button “Insert into post”.</li>
</ol>

WP Table Tag Gen

This plugin generates table tags with simple operations.

Shawn Parker

This is a simple plugin to put the <code></code> buttons back in the WordPress editor Toolbars.
The only caveat to using this plugin is that it uses functionality that has been in the WordPress core but hidden since the NextPage button was removed not long ago. All the functionality for handling the <code></code> tag via the editor toolbar is there in WordPress core. The JavaScript functions are loaded as well as the CSS, but the buttons are not added to the toolbar. This plugin adds those buttons to the toolbar.
If you’re OK with having functionality that could break in the next revision to WordPress then use this until anything does change in WordPress.

NextPage Buttons

The NextPage button is a simple plugin that brings back the NextPage button in the WordPress editor toolbar.

WP Table Tag Gen vs NextPage Buttons