I currently have a black macbook 2.4 4 gig of ram and am editing sd video. Besides the fact it cant run half the effect in final cut express it does ok. But my main problem is the time burning the 45 minute video to dvd. I am currently considering buying a 2.5 dual core g5 with 3 gig of ram. Will that machine be much improvment over my macbook especially in the idvd time. It currently takes about 2 hours and 20 minute. Will there be a noticable diffrence