well lets do it like this.
the laptop you displayed system specs:
* AMD Turion RM-72 processor.
* 2GHz processor speed.
* 1MB cache.
* 3GB RAM.
* 15.6in HD Acer CineCrystal(tm) screen.
* Resolution 1366 x 768 pixels.
* Widescreen.
* 250GB SATA hard drive capacity.
* Multiformat dual layer optical drive.
* ATI Radeon(tm) HD 3200 graphics.
* 256MB dedicated system memory.
WOTLK system requirements:
Processor:
Minimum: Intel Pentium 4 1.3 GHz or AMD Athlon XP 1500+
Recommended: Dual-core processor, such as the Intel Pentium D or AMD Athlon 64 X2
Memory:
Minimum: 512 MB RAM (1GB for Vista users)
Recommended: 1 GB RAM (2 GB for Vista users)
Video:
Minimum: 3D graphics processor with Hardware Transform and Lighting with 32 MB VRAM Such as an ATI Radeon 7200 or NVIDIA GeForce 2 class card or better
Recommended: 3D graphics processor with Vertex and Pixel Shader capability with 128 MB VRAM Such as an ATI Radeon X1600 or NVIDIA GeForce 7600 GT class card or better.
Short answer is yes, that laptop is good for playing WoW.