When I bought my computer, it came with 2GB of RAM. I like speed and hate waiting for my computer to do something. More RAM = faster computer = happier Adam.
Upgrading from 2GB to 4GB of RAM, if done through Apple, costs $400. Buying more RAM on Newegg costs approximately $75 (with free 3 day shipping!). For the math challenged, that is a difference of $325.
For some, that extra $325 is worth paying. Apple installs the memory for you without any hassle or worry on your part.
I am here to tell you that you should not worry. It took me 15 minutes to install my new RAM in my Macbook Pro. 15 minutes! I bought 2 2GB DIMMs of DDR2 667mhz memory.
Here is a brief tutorial of what to do:
1. Shut down your computer
2. Turn it over
3. Take out the battery
4. Remove the three tiny screws that you see
5. Take off the metal case that was held down by those screws
6. Remove your current RAM as shown by the picture next to the RAM
7. Put in your new RAM
8. Close everything back up, replace your battery, turn on your computer. Your MBP will automatically detect the new memory.
Total time = 15 minutes.
If my brief tutorial sounds too simplistic, check out this video by Chris Pirillo: