PC minimum specs for those curious:

* 2.6 GHz Pentium IV or equivalent AMD Athlon processor
* 1 GB RAM (1.5 GB required for Windows Vista/Windows 7 users)
* DVD drive
* 12 GB hard disk space
* 128 MB PCIe NVIDIA GeForce 6600 GT or ATI Radeon 9800 PRO video card or better
* Windows XP/Windows Vista/Windows 7 (With the latest Service Packs) And DirectX 9.0c.)

I can't see anyone having trouble running this unless their computer is either 5+ years old or they just don't have a graphics card powerful enough (which could be possible with a laptop). The system specs are far from excessive though, just like every other Blizzard game ever made.