Much like a Volvo. Both are also dull, uninspiring beasts. However, where my analogy falls down is that it would only take place in a parallel universe where everyone drove round in hotrods and people thought Volvos were sexy and hip.
Excuse me? If you're trying to imply that a PC that someone has stuck a crap-load of neon glowsticks onto is somehow "inspiring" then I really don't think you're using the right criteria to judge computers by:
A good computer should be built to last, whether it's "outdated" in future or not it should still perform well. Most modded machines I've seen NEED to be upgraded regularly, if they aren't then sooner or later one or more of the components will simply fail.
A good computer should be easy to use; with a minimal amount of set-up and "tuning" you should be able to just do the things you need to do. I shouldn't have to think about which drivers to install, or what anti-virus software to get.
That's why a Mac is good. And performance-wise they are hardly uncompetitive.
I simply don't understand the people that spend large amounts of money on a machine just to get a few more frames-per-second out of a game, often when they're already getting a high enough frame-rate that the extra frames aren't visible to the human eye anyway, and frequently reducing the operating life of the individual components.
Back to the original question though; If the OP wants to try a Mac then I say go for it, but only bear in mind that you'll need a Mac Pro or iMac if you want a decent graphics card for playing SL and any other games. If you have trouble running SL on Mac, or find software that you need to use that is Windows only, then you can simply use Boot Camp to install Windows on the Mac and switch Operating System as required. Or you can even get something like Parallels which allows you to run Windows within OS X, without emulation.
However, as with most people who use it, you are likely to find that you'll use OS X most of the time anyway. The vast majority of programs have direct equivalents on OS X anyway, and many of them adhere to the Apple design standards, meaning they are nice and easy to use.
