Its really what you could afford or what you can handle. I personally dislike macs. I remember one year going into CompUSA and went on a dual CPU mac, and purposely opened up Amiga.org on the web browser and walked away from it. :-D
But the thing about mac is that there isnt the freedom of doing what you want to your OS.... Like you are limited to do what a MAC user can, and cant go beyond modifying the OS as much. I may be wrong, but I just get that effect from it.
But you can decide what you want though. Personally why not pick up a PC and get Linux for it? If you have and already tried it, then not sure what to tell you. :-)
But if you think its a computer that you would like and have the money in hand, then go for it....