Upgrading Ram

ram cant be consolidated lol,
i think the max ram your machine can take is 4Gb,

the difference between those two posted is the first link is DDR2 which will work with your machine, and the other link is for DDR3, that wont work with your machine

 

yeah two sticks will work, i think thats the Max
you could check Everymac.com to see if your machine can support more, the limits apple impose aren't always the absolute limits

 

There are two memory slots in you MBP if you have 1GB module in each slot for a total of 2GB then you have to buy two 2GB modules to have a total of 4GB on the other hand if your system has 2GB of ram in one 2GB module installed right now all you have to do is buy one additional 2GB module.

The two links you've provided are for two different types of memory as you've already said one is 200pin and the other 204pin, one is ddr2 and the other is ddr2. When it comes to memory you have to get the right kind for your MBP or it won't work.

You can go to http://www.crucial.com/mac/index.aspx and use their memory advisor tool to find the ram compatible with your MBP.

 

if you can afford it, you can never have too much ram

 

It should be 8GBs of RAM since they offer that option when you buy your MBP.

 

He doesn't have the latest MBP- this is evident when you re-read the original post, claiming that said poster has 2GB originally, a configuration that is not available for any of the 15-inch MacBook Pro Unibodies.