There are always ways around paying the monthly fee. May mean you dont get to play on Blizzard's servers, but either way. Not confessing to anything, just putting it out in the open. Maybe you dont have to pay to play...
Oh, and btw. System minimum requirements:
Windows® System 2000/XP OS:
* Intel Pentium® III 800 MHz or AMD Athlon 800 MHz
* 512 MB or more of RAM
* 32 MB 3D graphics card with Hardware Transform and Lighting, such as NVIDIA® GeForce™ 2 class card or above
* DirectX® 9.0c (included) and latest video drivers
* 6.0 GB available HD space
* 4x CD-ROM drive
* A 56k or better Internet connection
Mac® OS X 10.3.9:
* 933 MHz or higher G4, or G5, or Intel processor
* 512 MB RAM or higher; DDR RAM recommended
* ATI or NVIDIA® video hardware with 32 MB VRAM or more
* 6.0 GB available HD space
* 4x CD-Rom drive
* 56k or better Internet connection
http://www.worldofwarcraft.com/info/faq/technology.htmlReally the space of the actual game is the killer, but if you have plenty of space on your pc, it wont be a prob. About 9 gigs for the current game version. Dont know about after the next extension gets released.