With my education hat on I video lectures and seminars etc for subsequent editing and composition as DVDs and downloads. This is currently done on a PowerBook G4 1.67 machine with 1.5 gig of ram and iMovie / iDVD 6. Am looking to replace a Windows desktop (which has a <10% success rate at producing DVDs) with a Mac desktop of some sort. However the benchmark figures given on review sites and in mags don't mean too much to me other than to show that one configuration is faster than another. What I would be really interested in is some real life numbers. So for example on the PB it takes around 5.5 hours, from the time you click on iDVD Burn button to the disc being complete, to create a 2 hr DVD (typically comprising 4 x 30 min presentations/lectures) with a simple standard iDVD menu structure. How long does it take to do the same on Apple's current desktop offerings? Any info on the Mini, iMac and mac pro (I can dream) or pointers to sites which do provide such figures would be really helpful. Thanks.