You may want to investigate using bittorrent to distribute wikipedia
database dumps. It would save your bandwidth, and increase download speeds
for users:
http://www.bitconjurer.org/BitTorrent/
My personal experience says that the bittorrent system works well.
PS. I'm not sure if this the right mailing list.
Heikki Orsila There has yet to be any innovation, new
heikki.orsila(a)ee.tut.fi features or new capabilities out of the
http://ee.tut.fi/~heikki Linux platform. - Steve Ballmer of Microsoft