Unfortunately there really isn't much out there in the 5" range that has all of the things you are looking for. I was sad to sell my 505 and have played around with most of the alternatives out there, unfortunately with very little in the way of success.
The Pocketbook 360 is probably your best bet, it has pretty much everything you want. It is currently being sold for $129. Here is a link:
http://www.pocketbookreader.com/PocketBook_360.html
I have to say, as a former die hard Sony fan, that there are a few good devices out there that don't have everything you are looking for, but that might just make up for those short comings with other features that you have not considered. Food for thought.