I've got powersteering, the a/c was broken in my car when I got it so I took it out, it doesn't get that hot where I live and I didn't feel like shelling out that much money for a new compressor.
My car came with everything. AC, PS, CC. I took out the A/C b/c it stoped working (I never used it when it did work ne ways so...), and I took out the C/C. No need for it. It does get hot some days w/out the AC, but I deal with it.
I have A/C P/S and C/C. I don't use A/C a lot but its usually on when the wifey is in the car. I prefer to ride with the windows down on hot/nice days. I'd hate to not have power steering. I use CC a lot when i'm driving to school or anytime i'm on the highway.
i don't have ac or ps on my civic and turning it is not that bad and i do have ac and ps in my integra but i dont think i even need it. i'm not sure but i have vx wheels and my civic and its really light so i think that may be why i dont have any trouble with steering idk jus a thought.