Extend the life of your laptop, with a ram upgrade & hard drive swap
I was running out of memory constantly. I had been using multiple external hard drives to shuffle files back and forth for months and had recently noticed significant lag in performance. My laptop would often freeze up (bringing out the color wheel of death) and required a hard reset. I had to do something...
...So, I decided to make the jump and replace the hard drive with the Seagate 750 GB Upgrade Kit and also upgrade the RAM to 6 GB while I was at it. Honestly, I was hesitant to play doctor on my macbook pro but after watching the video tutorials and reading the guide a few times, I felt confident. The process went smoothly with the only glitch happening when I first tried to clone my drive with SuperDuper! and it had some, 'file directory not found' issues. After relaunching SuperDuper! it ran like a champ. Once the files were copied the actual drive swapping process was relatively painless. The iFixit screwdriver kit and spudger were sufficient tools for the job and I was in and out with a new hard drive in under 30 minutes.
Give yourself a looooong amount of time for SuperDuper! to clone your drive and make sure to pay attention to the detailed instructions and tutorial videos.