Well I ended up getting the Kumho Ecsta ASX in 205/50/17.
They seem to last to over 50k regularly, weigh 22 lbs, have a 420 AA A rating, and can be inflated to 51psi
So they are a bit skinnier than my current tires (the ones that came with the car), those were 215's... and those could only be inflated to 42psi; so we will see what the gains are hopefully 1-2mpg's can be possible.