Ebook Reading devices - in Busan and elsewhere

I've long been interested in buying an E-book reader device.  I've seen pictures of Amazon's Kindle and the iPad online and they look good.  Still, I want to hold one and try it out before buying one.

I am not set on a big name device - the Kindle and iPad are probably beyond my means, but several domestic companies also make them.

HiMart, Digital Samsung and the like don't seem to carry them.  Anyone know a shop where you can try one out?  I would prefer to learn about Busan area but I occasionally go to Seoul.