5 - 30 dakika
My wife's mid 2009 13 in MBP was running slowly and she had used almost all of the space on a 250 gb drive. Installed the 750gb Seagate hard drive upgrade kit and 8gb PC3-8500 ram.
Using the Guides provided on this website, I was able to replace the hard drive and ram chips in 40 minutes.
A very easy job. The MBP is much faster and the wife is pleased.