I have the same setup, and I'm not even remotely thinking of upgrading until 3+ years down the line, or until 1366 is largely phased out with 2011 and prices go down way down on something like the 980 or 990. But that likely wont be as cost effective as 'downgrading' to 1156 and parting out my 1366 build. 1156 is much more attractive now than it was when I went 1366.
Or maybe 1366 survives in a limited role sandwiched between 1156 and 2011.
The
980 at $600 makes the most sense. Or if you want to spend a
grand...
Personally I would wait for 2011 or until price come down on 1366. Maybe we could see the 980 at around $300 at some point next year.