Unless you have an extreme PC...Adobe makes no sense (unless you are using the Quadro nVidia cards in a Mac Pro). Sure, the Merc engine increases performance for a few transitions and filters....but rendering is still necessary in MOST cases!
Premiere Pro makes sense in a lot of cases for Mac users. It makes the most sense for After Effects artists, like yourself, as you can dynamic link directly to After Effects from the Premiere Pro timeline. As you pointed out, Macs work great with Premiere Pro and the NVIDIA Quadro 4000 card. More and more cards are being supported as time moves forward. Want a certain card to add Mercury Playback engine hardware acceleration? Make a request here: http://www.adobe.com/go/wish
Not sure what you mean by "unless you have an extreme PC, Adobe makes no sense?" Yes, you need more RAM and a decent NVIDIA card to make Premiere Pro really fly on a PC-it's a 64 bit application-but even modest PCs do just fine with Premiere Pro. If Apple puts out a 64 bit application, you can bet that you should be looking at upgrading your Mac with a lot more RAM, more cores on the GPU, etc., as well. Need more info on tuning your system with Premiere Pro? Watch this: http://tv.adobe.com/watch/learn-premiere-pro-cs5/optimize-a-computer-for-mercury-playback-engine/
You wrote that rendering is still necessary in most cases. Really? What kind of system are you on? I've never had to render, even on my '09 MacBook Pro with no NVIDIA card and the Mercury Playback Engine in software mode.
You say that CUDA accelerates only a "few" video filters and transitions? There are a lot more than that! Upgrade to Premiere Pro 5.0.3 and you'll see the following GPU accelerated effects:
- Alpha Adjust
- Basic 3D
- Black & White
- Brightness & Contrast
- Color Balance (RGB)
- Color Pass
- Color Replace
- Crop
- Drop Shadow
- Extract
- Fast Color Corrector
- Feather Edges
- Gamma Correction
- Garbage Matte (4, 8, 16)
- Gaussian Blur
- Horizontal Flip
- Levels
- Luma Corrector
- Luma Curve
- Noise
- Proc Amp
- RGB Curves
- RGB Color Corrector
- Sharpen
- Three-way Color Corrector
- Timecode
- Tint
- Track Matte
- Ultra Keyer
- Video Limiter
- Vertical Flip
- Cross Dissolve
- Dip to Black
- Dip to White
I suggest you give the app another spin with a proper machine.
Best,
Kevin