Powershot for video

I do video for a living, amongst the many cameras I have used and presently use, from 2/3 type ENG to 1/3 type camcorder to DSLR I very very VERY ocassionally grab a quick pick up or cutaway shot on my Powershot SX230, primarily because in some occassions I see something that would be useful, and it happens to be the only camera I have on me (it lives in my glovebox)

In good light, and with a frame rate flash in Cinema Tools it actually cuts in very well with DSLR footage for GV type shots. The 400mm+ equivalent zoom is useful as is IS.

Downsides are that there is no manual control.

Do any of Canons other powershots offer any form of manual control in video, main problem is auto exposure ramping, sometimes WB is off, and occasionally too high an ISO kicks in...

It's not to replace a dedicated DSLR or video camera, its really something compact, big zoom with just a little control over video. CDHK can't help... any thoughts?