Hey There, I have a early 2008 Macbook Pro with the Nvidia chip issue (baked the logic board twice already and still working). I was thinking about upgrading the HDD from the 200 GB to something like the Seagate 750 XT with SDD or a WD Black 750 GB drive. Only questions is, if I can expect the Macbook to work faster after the upgrade. It's been a little slow lately and often hanging when using a browser - my harddrive was quiet full in the last month, so I am not too sure if this is a HDD thing or something else. Anyway Blackmagic Disk Speed Test says the write and read speed of my 200 GB HDD is about 50 MB/s. Is this perfect working condition or can I expect one of the two HDDs mentioned above to perform better in this regard! thx"