Kind of begs the question of why we don't have true AA inside of Vegas. Having to buy a 3rd party plugin just to get basic text looking good seems a tad odd to me.
Have you tried using the CMOS distortion remover in NBE 3? It's a lot less expensive than the other options that are available for removing "jello". I'm dealing with computer hardware issues today, so I'm not about to test out any new software. :-(