The fact I can export most to a PDF will cover this without spending 100s on Adobe Products.
There is software available for Windows which lets you export to PDF as well and it doesn't cost a penny, unlike iWork.
the added bonus of a more stable platform.
More stable is an absolute joke. Just over a year ago an iMac would be the most stable computer you could buy in its class. Since the introduction of "Leopard" though their performance and stability has gone downhill.
Some of this has been fixed by incremental software updates. However, you're going to become very familiar with this little icon:

One of the first things I show anyone who buys a Mac is that holding down the Alt key while right clicking an icon in the dock modifies the menu. This gives you access to the much needed "Force Quit" function, which is basically the same as pressing CTRL-ALT-DEL on your Windows machine and ending a process. When you see that beach ball icon, it's time to perform this!
Unfortunately, a lot of the members here never experienced Tiger so they won't be able to tell you how much worse Leopard is.
I'd rate Leopard as worse than Windows XP for program crashes, but slightly better for its implementation of how to get around them.
The problem is that Mac OS gives you very, very little feedback on what it's doing. If you want to modify something to get it just the way you want it you'll probably have to become familiar with Terminal and its Command Line interface.
I'm not saying Mac is a bad computer, I use mine all the time, but I just wish people could be made more aware of their problems when buying, instead of simply looking through the rose tinted glasses.
I made the switch to Mac in 2005 and back then with Tiger vs Windows XP (which was an unstable mess at the time) it was no contest. Windows has since improved vastly and Mac OS has gone backwards. Back then I would tell everyone that getting a Mac was the best thing they could do and I really did believe it was true. Hell, it probably was true. But these days when we have good, stable, feature rich operating systems like Windows Vista on the PC side and Windows 7 coming along too I find it hard to recommend a Mac, especially with these new UK price hikes.
But, it's your money and if you're happy spending £2000 on a machine which will give you the same performance of a PC a quarter of that price, that's your choice.