As an aside, including a replication procedure in each bug report really, really helps a developer pick it up to start repairing it. I know Darrell does a good job of this, but perhaps other members of the team could do some triage and append a bug replication process to bug reports that do not currently contain one?
How about just looking through every bug report and making sure they are organized, still valid, and are actual issues? I mean i know it's dull and there are hundreds of bugs, but there's always a few that linger that have been solved or need status changes. I feel bad telling anyone to sit there for hours and look over each page, manually testing each problem, but it might be well worth it.
Calvin