The folks at ThunderNews are offering CG users $5/month Usenet access for the life of the account. The price includes unlimited up to 75GB bandwidth, depending on the deal, and they’ll be running the offer until Monday.
If you’re unsure about Usenet, let’s just say it’s pretty great.
You can sign up here and if there’s enough demand they’ll continue the deal for a few more days.
UPDATE – Sorry, didn’t see tiered part.