If you've divided your router requirements into needs and wants, and you've determined that a single-band router is all you need, D-Link's DIR-645 is a good choice. If attaching USB storage to that router is also firmly ensconced in your needs column, on the other hand, you should stay clear of this...
Fast performance, especially at long distance; DLNA and iTunes servers
Operates on only 2.4GHz frequency band; one underpowered USB port; unintuitive web-based UI