i know of one site using them and they pull in 100GB/month with no problems on a raq3 cobalt server...
i did have contact a catalog rep a few months ago about a cobalt raq server on special, but after alot of emails between the sales guy, they stopped responding to my email after i missed the special which somehow ended a day earlier than expected...
instead i went with rackspace.com for dedicated linux server p3-500, 128mb, 10gb, 50gb/month for US$405/month which now is US$379/month and i got free setup on special with rackspace.com but normally is US$250
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Australian Neon Genesis Evangelion