Hi everyone. I have owned a late 2009 Mac Mini (C2D, 2.53ghz, 4GB ram, stock 320GB HDD, Mtn Lion). My itunes library is getting filled with TV programs and videos, and it gets really sluggish with multiple applications open (Safari, Chlome, EyeTV etc.). It has served me well, so rather than getting a new Mini, I would like to upgrade HDD and memory. I know it can take 8gb ram, but I am a bit confused with what kind of internal HDD it can take. I definitely would like a 7200rpm drive. What I found is below. http://eshop.macsales.com/item/Seagate/ST750LX003/ Would love to know what you think. Also, if anyone has any recommendations, I'm all ears. Thank you for your time!