**********PSA**********
This is in your best interested to distribute yourselves out.
Whats stopping btcguild from using round robin or some other distributing algoritm when going over? that would solve the single server overload issue directly.
Deepbit points you to the closest server when you use their adress so it is possible to do.
Edit. everyone mining with the guiminer or other mining softwartes with hardcoded addresses would have to change miners to use those links.
he tried round robin, it overloaded the balancer...
well, the round-robin doesn't need to be smart, he could use vanilla DNS for it without any balancer. can't control it automatically and fast though (well, unless very short TTLs are used along with some bash-fu to check availability/update the main dns record) but at least wouldn't lose mining time and the eventual hashing power drop could be avoided. (of course, port 80 needs to be redirected to the main webserver which needs to run in a subdomain, maybe 'www')