You have to use alot, ALOT of strawberries to get any kind of flavor, and the beer (or at least mine) was a weird, fleshy pink, NOT COOL. I used 1.5 lbs of frozen strawberries to a gallon of Strawberry peach Wheat beer, and the strawberries where just there in flavor. i would think you would really have to use alot to get them to play with the hops in an IPA. That being said, maybe consider some strawberry jam or jelly. You'll have haze and pectin issues, but WTF and it should be a pretty powerful flavor.
As to hops, I'm with Grizzlybrew, Amarillo all the way!!!