I have a D-Link 624 as my primary wireless router. Currently, it is hardwired to my DSL modem, and also hardwired to my main 'puter (XP Home). Wirelessly, I connect with a PowerMac G4 using a D-Link 710AP. My current project is to try to get my 3rd computer connected wirelessly using an Airport Express I received for Christmas.
Supposedly, the only way to do this is using an Airport Extreme base station which supports WDS (Wireless Distribution System). D-Link DI-624 doesn't have WDS support, but there is supposedly a work-around. Plan to try this tonight and will post results, and how to do it if it does work.