Thanks for the replies.
I received the 600 at the office this morning, the 505 should arrive Monday.
I've been familiarizing myself with the 600 for a few hours now. I love the features, the glare is not a major issue as it's a minor tilt and it's fine. I do keep wanting to find a contrast button though and deepen the black of the text (though I know that's not possible). I'll continue to read with it and then give the 505 a try on Monday. I'll hate to give up all the functionality of the 600, but right now, I'm a little disappointed in the contrast level.
Just sharing my thoughts in case any other newbies out there are in the decision making process as well. Just my $.02
