Laptops' CPU and GPU overheat a lot sometimes, and If you don't want to watercool, you can add fans! In this I'll be showing you how to make your own laptop cooler! You'll need the following:
Some kind of building material (Try for plexiglass or Lexan)
DC Power Supply
All of these you can obtain through eBay or the dump. I got my soldering iron, solder,switches, and wire from Radioshack, the fans and DC power supply from eBay. The links are below:
DC Supply - http://cgi.ebay.com/AC-100-240V-DC-12V-Adapter-Converter-Power-Supply-New-/270575442566?pt=LH_DefaultDomain_0&hash=item3eff8d9a86 (It has 1000MA of power AKA: 1A)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190468751856&ssPageName=STRK:MEWNX:IT (Not the best airflow, but it was cheap, if you want a better fan go buy one.)
Now, the number of fans you want to use is up to you, just make sure you have enough AMPS on your supply.
Step 1: Step 1-Preparing
Step 2: Step 2-Setting Up the Connections
Step 3: Step 3-Building a Case!
Clear rubber feet - http://cgi.ebay.com/Self-Adhesive-Rubber-Feet-CLEAR-Hemispherical-50-pcs-B-/300531991430?pt=LH_DefaultDomain_0&hash=item45f91a4386
Spikes(Coolers shouldn't be placed on a fabric surface like a bed, spikes help raise the cooler, they're good if you want your cooler to tilt as well.) http://studsandspikes.com/buy/spikes-c-43.html
I'm sure you can find anything else you need with a quick Google search, if not PM me and I'll try to find it for you.
Step 4: Enjoy Your Cooler!
Here's a 200mm fan cooler for like 10 bucks - http://cgi.ebay.com/USB-Big-Fan-Laptop-Notebook-Cooler-Cooling-Pad-dell-/200507479327?pt=LH_DefaultDomain_0&hash=item2eaf2d551f
By the way, the pictures of a laptop cooler below isn't mine, look on here to see who made it http://www.tomshardware.com/forum/51472-35-homemade-laptop-cooling-system