I was paying US$50/month for 608/128, but right now I'm paying US$50 for 0/0 in hopes of soon paying US$50 for 1500/768. I have a transfer limit on my Usenet bandwidth, but I doubt that's what you're talking about. If it is, mine's 1GB/month.

Edit: I should point out that I could get it cheaper, but my ISP (Speakeasy) is very cool to deal with -- very geek-friendly -- so I don't mind paying a little more, and I get a static IP, which is vaguely hard to come by in the US.