My cineform RAW files colorspace is sRGB IEC61966-2.1 so when I set up a project in AE CS4, should I keep that color space and set 32 bpc and turn on Linear Light?

Or should I set HD 709 as my color space along with 32bpc on and Linear Light?

Thanks, if anyone can help

Anybody have an answer?

I never trust the color management and always turn it off.

Well, that never occurred to me. I'll give that a try.