I would get a 9100 instead, but that's just me. I now have one (1250$ for a maxed-out model-WOOHOO!) and am remarkably pleased with it, considering the fact that I hate dell in general. However, the 9100 is more or less discontinued, so you're left with the 9200. With a puny XGA LCD and 256mb of RAM stock, it's lacking in features, and to get it up to "useful" level (I.e. 512mb RAM, WXGA LCD) would be another 200$. Add to this the cost of a Wi-Fi card and other random goodies, and you're set back about two grand.
I have ownedd a mac laptop, an 800mhz/G3 ibook, and was extremely happy with it. Between the convienience and immunity to spyware, it was heaven on earth compared to Windows ME, which I was stuck using at school. After a 512mb RAM upgrade (640mb total), I never had it crash, either.
However, my Ibook suffered a motherboard faliure, and needed multiple LCD replacements. Apple's motherboards are famous for crapping out mysteriously, with them making you wait three months before a program to fix them goes into effect. On the other hand, if you're not moving this around much, the 17" PB might be the way to go-AppleCare will get it fixed in three days or less, providing you have'nt damaged it. AppleCare is a necessity, however, so tack another 300$ on to the base price. OSX is very different from windows, too; I completely adore it's rock-solidness and nifty Aqua functions, others hate it.
If you REALLY need a 17" LCD laptop, look at Ibuypowe or ABSr. They sell AMD64 based lappys that are more powerful than the 9200 for about the same cost, and you can get more options on them. The tech support is abysmal at Ibuypower, but ABS is more expensive; it's your choice.
PLUG: See my F/S forum for a copy of Microsoft Office for OSX. Trust me, you'll be wanting it, and my copy is still in the original case, complete with manual.
Hope you're happy with whatever you try,
Cheesehead.