The best cooling solution for the MBP is to install FanControl. My first gen MBP used to run extremely hot and was definitely too hot to sit on my lap. I tried desk fans to cool it and that worked but then FanControl came out, I adjusted the speeds and my machine is now nice and cool to use. The temp used to hover around 60C and peak at 90+ but now it runs at 45C and never reaches 70C. The fans in the MBP are perfectly capable of keeping the machine nice and cool.