have had a mac pro since last march. best computer i've ever owned mac or pc. and i've owned them all from many Dell's, IBM's, and even a compaq thrown in i'm now a fully converted mac guy, especially since i worked at apple for the last 2.5 years! But the mac pro is honestly one the best made computers i have ever seen. not only are the components top quality but the machine is a beast. it's dead quiet, looks amazingly beautiful on any desk, and is amazingly fast. i've got the 8 core with 8gb of ram and the 8800gt video card. the ram i purchased from crucial because, as said before, apple is a rip off on ram and hdd's. i got the hard drives from newegg and have it loaded to the gills with 4 terabytes of hard drive space, one of the hard drives is for vista. not only is it a fantastic mac computer but i also run Vista 64bit without problems. It's seamless. You wouldn't be able to tell if it was a dell or a mac sitting on the desk. at this stage in the game there's really no reason not to buy a mac if it's been tempting you. especially with their dual-boot ability. if you hate os x then you just have a really nice looking windows machine. At this point i would probably wait for the Mac Pro's to come out with the new processors. That should be within the next couple of months for sure. I got a Mac Pro and have never regretted it since the day i got it. A fantastic machine albeit expensive but nonetheless worth every penny. People don't realize that when you buy a mac your not just buying a machine. Your buying some of the best service and support in the industry as well. I had an issue with the optical drive in my mac pro and had a new one at my door at the start of the next business day. Also, all the user installable parts in the mac pro are really easy to work on. Ram, hdd's, optical drives are all VERY easy to get in and out. Stupid easy! Get one and enjoy it!