Aye, I'm surprised there's not more Mac users here! But delighted, nonetheless! We run a spectrum of PC's here, and by PC's I mean AMD systems. Cost-per-renderminute is the key here. Don't waste your money on lesser tools, because that extra 100 bucks will at least get you a Wacom tablet or something fancy...! (6) AMD Athlon 1.2Ghz 256 & 512 MB DDR (1) AMD Athlon 2400+ 512 MB DDR(266, not the new stuff) (1) P-3 900 512 MB PC133 and finally, my work computer... (1) Pentium 2/266 64 MB PC-66 Thus, large corporations are more cost-effective. While losers (like me) are managing ridiculous projects at HOME that often fail, the "winner-me" at WORK only attempts petty, simplistic scenes, and thus is more cost effective and productive! The coolest part of using more than one machine isn't just Lightning, but the ability to have several versions of the same scene rendering or just available for tweaking, it's a blast! Mostly I just do commercial stuff though, I didn't get them all for Bryce... I've done some benchmarking with Bryce 5, my home p3-900's test scene rendered in 1:39, the AMD 1.2's did it in :52-:54, the 2400+ did it in :38! 2 AMD 1.2's did it in :42, but I have yet to try all of them combined... My work machine never finished it, though... (laughs!) Also, Madmax, I think your math is preposterous. Three Macs equal to five PC's? Not to be offensive, but that's totally ridiculous, and I'd love to see any Mac touch the AMD's render times! Also, Alien's are the most over-priced PC's on the market, clown shoes really. Research in these areas is the key...