Kindle/Nook?

I go through phases where I'll read a lot, and then mellow it out for a while.  After my 6 books back to back last month, I'm ready to jump in again.  I've been somewhat intrigued by the e-readers, and this was amplified a bit when I walked into Barnes & Noble the other day looking for an iPhone development book.

Doing my research, it appears the Kindle has a slight edge over the Nook.  However, one thing that jumped out at me was the navigation being slightly better on the Nook.  Controls are just something that infuriate me, so this one has me leaning a bit towards Nook.  One thing to keep in mind though, the Nook has shorter battery life, which is important.  I think both would easily last me a week of commuting, and then charge on Sunday or so. 

Price wise, it's about even.  E-books may be a small amount lower with Kindle than with Nook.  Neither one would be a good comic reader, but I don't want to introduce that argument in my head, as it opens the door to the iPad.

Final tangible piece, the Nook has about 500,000 more books available than does Kindle.

I don't know...maybe I should stick to analog books.