iCraig said:Up to 16GB of DDR2 RAM. Which is nice when you have huge Photoshop and Quark projects on the go.
OSX is also much better at rendering type.
Admittedly Vista has closed the gap somewhat, but there's still a line between the two when it comes to raw design.
Are PCs with 16GB that hard to track down? If you pick a dual cpu muli-core xeon setup from any of the big PC vendors they'll inevitably have the option of 16GB of DDR2 providing you use Vista x64.
OSX, XP and Vista screen rendering of fonts is purely aesthetic (and to be honest, pretty much identical - it was only ever glaringly apparent back in days of 1024 x 800 or less) and has no impact whatsoever on the final design by the time it hits paper.
High quality postscript and OpenType fonts are available on both platforms, although admittedly the PC user can forget about them after installing them once instead of faffing about with third party font managers all the time.
Microsoft also have a much more intuitive print dialog. You can change the printer, media size and document size in the same place - I genuinely wish Apple would adopt the same tactic.
I should also point out that the intel Mac Pro is alarmingly prone to hardware failure. At my previous place of work, three died in 2 months. At my new plave of work, two died in 5 months. Both firms between them had 12 Mac Pros, which to me seems a disturbingly high failure rate.
Mac enthusiasts will also point out that a Mac Pro is cheaper than a similar Dell system. This is true. Alienware are a different matter, being fractionally cheaper than Apple on almost identical spec.
It may seem like an anti-mac rant, but I use both on a daily basis in a design environment and as tools both are pretty much equal, the only noteworthy advantage being that the Apple can bootcamp Windows.