Hello, I have a 1st gen (1.83 dual core) macbook pro that I've used and abused for the last 3.5 years. Recently, I've started seeing horizontal lines appear on the machine. These lines will increase in frequency until the machine either freezes or completely shuts down. I'm pretty sure that both of these symptoms are due to overheating as both of my fans have quit on me (probably from the aforementioned abuse). Replacement fans at ifixit.com run around $40 a piece. Do you think that one of those USB cooling pads (which can be had for ~$20) would cool my machine enough that I would quit having these symptoms? Also, do you know of a good place to obtain fans for cheaper than the $40 per fan that ifixit.com wants to charge me? Thanks for you help!