I just used this guide to add a 4 GB chip to my MBP. Easy peasy. I have a 6 GB MBP. Seems way faster, but could be wishful thinking. But for less than a hundred bucks its not a wasted experiment.

This was such an excellent fix-it guide. I was able to swap out my keyboard while watching the Seahawks lose to the St. Louis Rams (sadly). One recommendation: have 12 or so ziplock bags each numbered with a step number that requires a screw or part to be removed and put the screws/parts from that step in the bag and zip it closed. You won't mix up screw sizes from the various steps.

Thanks again to ifixit.com for this excellent repair tool. My new keyboard functions perfectly!!

I didn't look well before the plug connecting top case to motherboard (see my note in step 8). When it came time for assembly it took a while for me to figure out when the plug connected in the motherboard. Take care on step 8 so that YOU have to make the disconnection in step 9. Then reassembly on this step will be much easier.

I had not problem easing GENTLY the top case from the computer even around the DVD but I didn't understand how easy it was to disconnect the top case from the mother board. TAKE CARE HERE. It will make reassembly much easier it YOU get to disconnect the plug. See my note on step nine