After going through burned out fans and unexpectedly short lives on my last few laptops that I use for Photoshop, I've decided that laptops just don't have robust enough cooling systems for image editing and added a cooler, and after a few months of using it, I'm really pleased. I don't feel like I need it all the time, so if I need to travel with the laptop, I leave the cooler at home, but just using it whenever I'm at my desk, which is 85% of the time, is a big improvement. These things are mainly marketed at gamers, who also suffer overheating problems. I've been using this one with one fan--
NotePal U1 - Cooler Master - Leading Provider of Computer Case, Cooler, Power Supply, Laptop Cooling, Gaming Peripherals
It's aluminum, so it dissipates heat fairly quickly, and you can adjust the position of the fan to wherever the computer gets hottest. It runs off the USB port and has a pass through connector, so you can still use the port for other things.
NotePal U1 - Cooler Master - Leading Provider of Computer Case, Cooler, Power Supply, Laptop Cooling, Gaming Peripherals
It's aluminum, so it dissipates heat fairly quickly, and you can adjust the position of the fan to wherever the computer gets hottest. It runs off the USB port and has a pass through connector, so you can still use the port for other things.