Wow... amazing. I was a little worried from reading this forum hearing about crashing, stuttering and funny smells but everything seems to be working perfectly. I have only been goofing around with it for about 45 minutes (I let it warm up via a regular fan as it felt about 0 degrees) and no problems what so ever so far. It is lightning quick (coming from the G5 in my sig). I ran COD2 multiplayer at max setting just for a quick test and it was smooth as butter. I even ran BF1942 to see how well it can handle old PPC apps and it ran just as fast as it does on my G5 so it looks like all games and programs from the PPC era will be perfectly usable due to the 3 years of advancement since. And it's much quieter than the PMG5. I hear my refrigerator 30 ft away much much more. The 4870 sounds almost as loud as the G5 did when it was working full tilt (than fan must move a lot of air. But that only occurs during startup, then it is whisper quiet. When under load it might make a little more noise but I really don't notice it. I haven't installed LCC yet as I want to make sure everything is fine before I do, but when I install it I'll report any problems. I haven't switched all my stuff over yet, but I have switched my 300GB HD over which contains some of my documents etc. The hardest par about switching the HD was getting the cables unplugged in the G5. Something that surprised the crap out of me is the internet speed. When I got high speed a couple years ago, I had an iMac G3 333Mhz. It could only download at about 50KB/s (a 3mb service) but when I got the PMG5 it would download at about 320KB/s for the same service. My ISP upped the speed to 5mb about 2 years ago and I got a download speed of about 530KB/s. Last year my ISP then upped it to a 7mb connection... but my speed never changed. I contacted them and they gave me BS like "maybe the quality of your home line is not good enough for a higher speed". I figured it was BS but I was being charged the same as before anyway so I didn't really care. Well I just switched the PMG5 out for the MacPro. I was still getting that 530KB/s speed with the G5 today but my MacPro gets... 890KB/s download speed, and upload went up from 80KB/s to 106KB/s. That surprised the heck out of me. I knew processor speed was an influence by my experience with the old iMac, and I always knew that when DLing on the G5 it would take a good chunk of processor time (safari CPU usage increases) but I thought the G5 would be capable of more. Both systems use airport, but that has nothing to do with it as they both get the same speeds whether using wireless or with an ethernet cable. This system is looking good so far. $2499 or $2999 I don't really care when upgrading every 4-6 years.