I'm looking to get a new tower, for basic webserver stuff. I also need to accomplish some multimedia tasks (like watch TV, play DIVX etc), so my G3 tower isn't fast enough anymore. My question is, how important is it for me to seek a dual G4? They are much harder to find and tend to be a lot more expensive. I was looking in the 450 Mhz -533 Mhz range (Sawtooth G4 (Gigabit ethernet) through Tangent (digital audio)). Is it worth going for a dual? How much better are they? Thanks!