Considering powerstrip - is it necessary?

Guys and gals,

Here's my setup:
WinXP HTPC with Radeon 9600XT -> DVI-HDMI cable -> Optoma HD70.

So far I've only been using it for downloaded HD trailers and light gaming. I have no ripped DVD content, but will soon.

I installed the ATI display driver but not Catalyst Control Center because I don't really want .NET. Windows has no problem with the HD70's native resolution: 1280x720 @60Hz for 1:1 pixel mapping.

Games look fine, text looks fine.

Eventually I will archive my DVD collection (into .vob files most likely). I assume I'll see judder associated with 3:2 pulldown during playback. I'd like to test the HD70 at 48Hz (47.95 according to other forum threads here). I doubt Windows will let me set 1280x720 @47.95Hz within the usual Windows display properties. Since I didn't install the Catalyst Control Center, I don't know if it can be done there or not.

But reportedly this is why I should use Powerstrip? Is this basically correct?

Does anyone know if Catalyst Control Center can do this too?

It will be interesting to compare playback of a DVD rip on the HTPC to the original played back on my oppo dvd player.

Thanks,
Jay

I'm sure I set custom resolutions with Catalyst - but I don't need to. 1280x720 is a default resolution identified by Windows without Catalyst. I need to know if I can change frequencies to 47.95 Hz ? Does Catalyst offer this much precision (XX.XX) ?