Here's a hard one (or just something I don't know). When rendering, I note the famous slowdown whenever Vegas hits text (or other 3D type overlays). I was trying out features on Pinnacle Studio 8 (hey, after the $50 rebate it's 20 bucks, what the heck) and I noticed that the plug-in, Hollywood FX, can be set to use your video accelerator card (I have an nVidia GeForce4 MX, 64 MB) to actually hardware-render the 3D processes on the fly--in playback from the timeline! It's not perfect but the speedup in playing the 3D transitions is amazing. I wonder if V4 could be scripted to speak to the memory in a PCI accelerator card (at the rendering stage, not just playback).