I should have emphasized "properly installed". :) Poorly installed cat 7 may be insufficient for what you want. I've actually had some limited training on cable installation (though, i'm admittedly no pro) and to get cat 5e *certified* for gigabit, there are a lot of details in the installation process that if missed, can limit the network speed. Things like minimum radius bends in the cabling and termination techniques can take gigabit capable and reduce it down to something much lower.
I'm not against future proofing either. If money was no object, I'd run "fiber to the desktop" in my house. I've also spec'd out cable installed for network and phone and had people look at me funny when I asked for cat5e for phones. Cat3 was the norm for phones, but we wanted to be able to easily convert to VOIP or network if needed in the future.
If you do ever get up to 10 gigabit going, i'll be impressed and a little jealous. :)