Hello,
DD-WRT* has been working very well for over six months on my D-Link 825 Rev.B, in concert with a Motorola SB6120 on a TWC Roadrunner connection.
Not exactly applicable, but it seems to be a pretty solid platform for the DD-WRT code.
Just thought I'd throw that out there,
Hank
*(DD-WRT v24-sp2 (08/07/10) std)