HDR is software base, any camera shall do, as long as you can set different exposure compensation. Even without it, you can do it in PS by using layer and layer mask.

http://www.juzaphoto.com/eng/articles/laye..._layer_mask.htm

Hoongji, am I looking at 3D images without 3D glasses? Just joking. You don't necessary have to merge 2 photos to create HDR, try it with a single photo.

You can use layer and layer mask to brighten up the dark area a little.