People always enjoy their videos on their iPad first generation. Now how about iPad 2? iPad 2 supports video formats:

H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats.

So if you have videos in those format and encoder. Just sync them to your iPad 2 with itunes. If you video is not supported by iPad 2, here I recommend you Aiseesoft iPad 2 Video Converter
It can help you to convert your videos to iPad 2 supported video formats easily. And it can also do many video edit work.

Convert video to iPad 2:

Step 1. Download and install iPad 2 Video Converter

Step 2. Load Video
Click ?Add File? to add videos you want to convert to this powerful iPad 2 video converter.



Step 3. Choose Output Format
Choose your output profile from the drop-down list and you can also adjust the video settings.



After you have done all of above, you can click ?Convert? button to start your conversion and soon you will get your video(supported by iPad 2)

Certainly, if you are a Mac user, you need download the Mac version:
Aiseesoft iPad 2 Converter for Mac