Hey Mouse.. I bought the D link GSL 4500 Gaming Router 15 months ago, unfortunately it crapped out on me as of last week. Up to that tiime i thought it was a pretty good router. Its a nice feature that you can designate acertain amount of bandwidth to a device. You are correct that the firmare is difficult to navigate.
I was not impressed that it crapped out only 15 months after purchase and of course it only had a one year warranty. For its replacement, i was recommended the Asus N56U Dual Wireless Router. After a week or so of use i found it to be a better product. Stronger signal, faster and quick login into the gaming servers (the D Link took forever) all the same capabilites as the 4500... and a 2 year warranty...
Here is the link from the site...
Good luck, if u have any more questions Mouse... PM me..
http://www.newegg.com/Product/Product.aspx?Item=N82E16833320062&cm_sp=Pers_ProductSimilar-_-33-320-062_2_AG-_-33-127-243