"high end router" to me is subjective, personally any router that is at or or was at the $200 mark, is a a high end router to me.
Anyway, thanks for the feedback, I am really happy with the DGL-4500 but as stated before, I am moving and will need an additional router.
I was hoping the DGL-5500 was the ticket but it seems to be missing the mark as of right now. I want a "gaming" router if one even exists. IMHO, the 5500 should be able to everything the 4500 but only better, especially online gaming but reading the post one here and the reviews it is not noticeable in the real world.
I have a couple of more months so I will continue to keep an eye on firmware upgrades, etc for this router but if I had to choose today, I would probably buy the Asus router.