First, we need to know what your father intends to do with aforementioned Mac. If you want to look at things from an economic perspective, Macs are good for one thing: Video editing and compositing. Primarily due to Apple's Final Cut Pro [http://en.wikipedia.org/wiki/Final_Cut_Pro], which is the de-facto editing program for films. If your father is not into this, he should reconsider buying a Mac, whilst they are nice computers indeed (very polished), the absolutely
outrageous price makes it somewhat unappealing for the economically minded.
When it comes to the OS and software itself, it's difficult to make an argument. Yes, it is very polished, and looks very good, but despite Apple's much touted "runs great because the hardware is optimized", OSX tends to get relatively sluggish after some use (even though it may very well outperform Windows in this aspect).
My recommendation is that if your father is desperate to get a sleek, polished, good-looking computer system, he's much better off getting a Windows laptop, rip out Windows and installing an easy-to-use Linux distribution, such as (keeping our mind on good graphics) Kubuntu [http://www.kubuntu.org/], or Linux Mint [http://www.linuxmint.com/]. Both are running (or are available) with the KDE desktop environment (which is geared toward good-looking graphics), and both are geared for out-of-the-box compatibility and ease of use. Not to mention that they're both free (as in 'freedom' and as in 'free beer'.)
darth.pixie said:
They are not as secure as Mac Users tend to believe. There are less viruses, true, but that doesn't make it safer. And in believing that they're safe, they may lose more than the average PC user. Also, with a proper antivirus, you'll never have issues..
This is not entirely true, since OSX is based on UNIX, it handles user and program privileges in an entirely different way compared to Windows. You see, Windows have this nasty habit of giving pretty much all programs Administrator access to the system, which allows them to change files and modify your system as they please.
This is not the case with UNIX, OSX or any *nix-system out there, where full system access is rather sparsely distributed, and users rarely ever run as full system administrator (or 'root') accounts, instead getting 'root' permission when needed, via the 'sudo' [http://xkcd.com/149/] command. This, most people argue, makes the system inherently more secure.
Which is not to say that it is fully possible to get a virus for both OSX and UNIX, and that there are anti-virus programs available, which can protect you, but even they are not a guarantee that you won't eventually get infected, though most people consider anti-virus programs unnecessary, not because they think they're invincible, but because if they *do* get a virus, it will probably be well-crafted enough to bypass the anti-virus system anyway. One should remember that when you're connected to the Internet, you are
never completely secure.