There is a very good website on Rawalpindi here at
www.pindiplus.com
It's complete with a huge collection of photos and clips, info on traveling to Pakistan, where to stay, what to do, the history of the city....most everything you might want to know.
The site was started on a shoestring budget by Dr. Kashif Ahmed. He's done a great job and attracting Pakis as well as westerners to this site.