Hey,
1) As far as I know there's no table shortcode but html tables are prestyled - the demo table uses following code:
<table id="mytable" cellspacing="0" summary="The technical specifications of the Apple PowerMac G5 series">
<caption>Table 1: Apple Product specs </caption>
<tbody>
<tr>
<th class="nobg" scope="col">Product:</th>
<th scope="col">iPhone 3GS</th>
<th scope="col">iPad</th>
<th scope="col">iPod Nano</th>
</tr>
<tr>
<th class="spec" scope="row">Version</th>
<td>3rd Generation build</td>
<td>1st Generation build</td>
<td>27th Generation build</td>
</tr>
<tr>
<th class="specalt" scope="row">Multitouch</th>
<td class="alt">Yes</td>
<td class="alt">Yes</td>
<td class="alt">No</td>
</tr>
<tr>
<th class="spec" scope="row">Video</th>
<td>Yes – doesnt play flash content</td>
<td>Yes – doesnt play content</td>
<td>Yes – does play any content</td>
</tr>
<tr>
<th class="specalt" scope="row">Release Date</th>
<td class="alt">Nov. 2009</td>
<td class="alt">Mai. 2010</td>
<td class="alt">Jun. 2010</td>
</tr>
</tbody>
</table>
2) You can add videos by using the "Add featured media" options. Click on "Upload", afterwards click on the "From URL" tab and enter your vimeo video url there. At least click on "Insert into Post". This option will embed the video directly - if you select the "fullsize" slideshow the video will be fullsize like: http://www.kriesi.at/themes/brightbox/portfolio-item/aviathemes-opens-its-doors-soon/
If you'd like to use a lightbox popup upload an image first (i.e. from computer or use an image from the media gallery) and select "Apply link to the image?" - "Embed Video when image is clicked (Enter the URL to a video file or a service like youtube/vimeo)". A field appears where you can enter the video url,