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Google Fiber goes big with 20-gig plan
(www.fiercetelecom.com)
This is a most excellent place for technology news and articles.
Buy a media converter and do 25G -> 40G and run a 40GbE home net. Retired 40Gb gear is ludicrously cheap.
Edit. Or just stick a two port 100GbE card in your router, use an adapter to step one port down to 25Gb and run 40Gb off the other to the rest of the network.