How can I successfully reapply the thermal paste in my MacBook Pro? (2008)

I'm having issues with keeping my computer cool, mainly while playing games like SC2 that require a good amount of power. I've downloaded fan control apps, bought cooling pads (usb powered) and still no luck in cooling this thing down. I recently learned that Apple for some reason applies the thermal paste too thick, which can cause the computers to be a lot hotter than they should be.
I'm not worried about voiding warranty, seeing as I don't even have a warranty. I've already opened it up to upgrade the ram and the hard drive so I know my way around inside there and have the stuff I need in order to do it properly.
What I need to know is where I can get the thermal paste, what kind I need, how it needs to be applied and with what (as well as how to get the old paste off), the steps I need to take in order to get to where this paste is even at inside the computer...etc.
If there's anyone who's already successfully pulled this off, lemme know how you did it and if it helped any. I've read there've been significant temp drops since reapplying it in a lot of these pros, so I'm just interested.

Hi
I’ve yet to remove the heatsinks of the CPU and GPU on my MBP. But I’ve replaced CPU and GPU heatsinks on my PC many times, so hopefully you’ll find my suggestions helpful.
1st use the laptop for a bit to get both the CPU and GPU warmed up so it will be easier to remove the heatsinks.
Remove the back cover and run your hands over the back side of the metal cover few time to get ride of any static charge that might be there (or any unprinted metal surface will do).
Remove the screws and heatsink one at a time. You might find the thermal past dried up (happens when company used cheap past and after computer is used for few years). Use tissues to wipe the past off both cores and heasinks.
You can also buy thermal past remover and clearer such as this:
http://www.amazon.co.uk/Arctic-Silver-ArctiClean-Material-Purifier/dp/B000BKP306 /ref=pdbxgy_computers_textb
I normally use Arctic Silver Thermal Paste, I found it's the best past around, and everybody I know are happy with it.
There are two ways to apply the past. If your CPU is a Core2Duo, than you can just put a little bit on the center and press down with the heatsink. This is because the 2 cores on the CPU are located near the center of the processor so it does not matter if the edges are not covered with past.
Or if you want to play safe, you can cover the enter CPU with an even thin lay of past using a flat plastic card.
When it comes to thermal past, less is more, you only want little bit to cover up the metal cover on the processor. I say no more than 0.5 mm thick.
Cover the entire GPU with past as well, I’m not sure if the RAMs on your graphic card are cooled by the heatsinks. If they are, you might need some thermal pads for them.
You’ll find the whole process quite easy as long as you take your time. You can found lots of info on this with Google and Youtube.
Good luck and don’t forget to give the heatsinks a clean with a can of compassed air before you put them back on.

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