Question: How do I transfer photos and videos between iPad and iPad 2?

Answer: 
This depends, do you have iCloud? as you can sync through iCloud. 

You can also configure all the settings in iTunes. So you can import all the images into iTunes, once they are there you can connect the other iPad and sync them.

If you do not want to keep the iPad 1, you can just connect it to iTunes, sync it and then connect the iPad 2 and restore it from the back up of the 1st iPad.
The original question doesn't have enough detail to really offer a solution here. But to clarify previous answers, the fastest way to transfer photos and videos between an iPad and an iPad 2 would be to sync to a single installation of iTunes/iPhoto/Aperture. 

A slower but simpler way would be to run Dropbox on the iPad, click on the UPLOAD tab at the bottom of the page, and upload all the photos and videos to the Dropbox. On the iPad 2, reverse the process and download all the photos back. 

If you're only talking about a few photos and you don't want to do anything outside of the Photos app, you could simply email the photos to yourself from the iPad and save them to your photo library (via the Mail app) on the iPad 2.

I suspect all three answers sound simplistic, but it's hard to know what you're trying to achieve and where you're getting stuck.