In my industry macs are the only way forward and are universally used. I know windows 7 is better than previous generations but just painful to use in comparison to OSX, lost far too much work on pcs. Never had a mac crash and ive used them for the past 7 years, I find the mac hardware very stable and seen the test of time. Never replaced anything on them apart from HDDs and upgrades. My Mac Pro 2.8ghz 8 core Xeon with 10gbs ram is a monster! Crunches through everything and anything very quickly. Will convert a 12gb 1080 .mkv in less than 40 minutes, not just that but most of my 3D programs dont even slow on this bad boy what ever you throw at it. 3D rendering is usually a good test on these things and I am very happy with it.
Although I am very unhappy with Apple as they have reduced there support to their professional users and are going further and further down then consumer road, but it makes the most money so I suppose they will continue... they haven't released a new Mac Pro since July 27th 2010 which in computer times is mental. I am ready for a new one too... but there is no point in spending £4k+ on a machine that is running 2 year old hardware.
Bit of a mac freak, I have - Mac Pro with 2x 23" cinema displays, 2x iMac, Powermac, Macbook pro, 2x Apple tvs, iPhone 3, 3gs & 4, 3x iPod Classics, 3x iPod Nanos, iPod Shuffle.. mad man haha! But all of it works flawlessly and I cant find fault.
The only other problem I have like all other Apple nuts, I wish they produced a decent desktop alternative to the Mac Pro. iMacs are ok but date very quickly and you cant readily swap HDDs without getting dust in the monitor and loosing your warranty, they use notebook chips and have awful glossy screens which (great for films and media) for print is a HUGE pain in the ass, I calibrate all of my stuff but the glare drives me insane too with the incandescent light in the office. Same with the Mac Mini it just isn't a worthy desktop IMHO. Then there is the Mac Pro which is great but at a decent spec is 2-3x more expensive than all the other alternatives and are overkill for 90% of people.
I dont know how many of you have read Steve Jobs Autobiography but he was taught early on in his career to make few product and make them well... Customer satisfaction is paramount and simplicity is the ultimate sophistication.
The more I read that book the more I dislike the man.