Hi.. I want to buy a HDD 2TB and i came up with this...http://www.flipkart.com/wd-caviar-g...PGTK&ref=51c2a0ca-fd04-4f55-8a4f-34b7d97081c1 It has 64MB Cache... 6 Gbps interface... Is it a good hdd??? Is it fast? My current HDD is WD2500AAJS.... will it work properly with it???