I was given this as a loaner from Fry's when my other laptop was in the shop for repairs. I logged about 200-300 hours of SC2 in Extreme mode. I never saw an issue, it was rarely turned off. I only had it for like 2 months, but it handled whatever I threw at it.
I know, lol toshiba. This wasn't the exact model, but the specs are pretty close. I know it was a Qosmio and X7xx series.
Intel® Core™ i5-2430M processor
Genuine Windows 7 Home Premium (64-bit), SP1
NVIDIA® GeForce® GTX 560M w/NVIDIA® Optimus™ Technology
1.5GB GDDR5 discrete graphics memory
Memory and Storage
6GB DDR3 1333MHz memory
640GB HDD (7200rpm)
DVD-SuperMulti drive (+/-R double layer)
Audio and Video
HD+ TruBrite® LED Backlit display
16:9 aspect ratio, 1600x900, Supports 720p content
Microphone input port with Sleep and Music, harman/kardon® stereo speakers, Headphone jack (stereo), Built-in microphone, Waves MaxxAudio® 3