If you have photos that you'd like to store on your iPad (or iPhone), for use at trial, mediation, or for your own reference, it's a snap to transfer photos between your i-Device and your computer. Just plug in your iPad, click on it in the left-hand menu, and click on the Photos tab.
Simply click Sync Photos From.... and then select the location where which you want to sync. If you want to sync from all folders within the My Pictures folder, for example, just make sure the All Folders button is selected. If you want to be more selective, you can choose the folders from which to sync - click the Selected folders button, and then place a checkmark by those folders to be included. That's it! Next time you sync your iPad, photos from those folders will be transferred to your Photos app on the device.
If you'd rather sync your photos wirelessly, then of course there's an app for that. Check out Camera Sync ($1.99, download from iTunes), which will connect to your Dropbox, Box.net, iDisk or even your Flickr or Amazon S3 storage locations. Just like iTunes, it will automatically move pictures between your Picture Roll on the iPad and your computer. Because you're doing this online, it might take you some time to do it.