120
Google Fiber is offering early access to $250 per month 20-gig service - The Verge
(www.theverge.com)
This is a most excellent place for technology news and articles.
I can get 8gbps for a reasonable price. For ~30 less I'm getting 500mbps because my firewall only supports about 700mbps of actual throughput.
The home 2.5GE routers might have 2.5gig nic but I highly doubt they can support it for a sustained time.