I am not so sure about overclocking a non-extreme edition CPU unless you have the BIOS unlocked on that laptop, I assume its a SAGER/CLEVO based laptop or an Alienware.
I've overclocked my GPUS and I really didn't get very far, but Afterburner, Trixx, Riviatuner, EVGA overclocking software. Pretty much anything works and will sync the overclock to each GPU.
You would be suprised about tripping the breaker in your PSU, I have done it multiple times on my NP7280. 2X 100 Watt GPUS and a 130 Watt CPU can pull some serious power.
Mobo: Sager NP7280 Laptop Motherboard (Unlocked BIOS) Processor: Intel i7-980X Extreme Edition @4.1ghz
Memory: 3X 8GB 1333MHZ G.Skill Notebook Ram Videocards: 2X Clevo nVidia 480M 2GB
OS Harddrive:Crucial C300 256GB SSD Storage Drives: 2x Seagate Momentus 500GB 16MB 7200RPM HDDS PSU: 2x Sager 300W Power Bricks
Case: Modded Clevo X7200 Chassis
OCC Cool Club Member