Sony Reader... PRS-505 or 700...

[zerogear]

I am wondering what to get right now. I used to have a Kindle 2, it broke in my backpack a week within release.. so now I am out to look for another eBook reader. I want something that has PDF support, how does the 505 and 700 do against each other?

I don't mind the blurrier screen, I checked out the demo unit at Borders, and it doesn't bother me too much. Since I read technical documents more, which one is a better choice? Kindle DX is out because it is too big for my needs.