We currently have a pair of BM 3.7 servers runnign on NW6. I would like
to setup some kind of failover that is better than just using round robin
DNS resolution. The problem is that when one of these BM servers dies, it
tends to take a while to die and then they obviously ahve to go through
the slow process of verifying the cache when they start back up.

During the slow death and slow coming back to life they still resolve.