Jason, could you update the DNS entries for the various *.wikipedia.org web servers to point at the new cache servers?
Ideally we should have two records so it'll hit both squids round-robin: 207.142.131.235 207.142.131.236
These are virtual addresses aliased by browne and coronelli. For testing or failover one can take on both addresses.
-- brion vibber (brion @ pobox.com)