Hi all, I've just bought a second-hand 2009 Mini from ebay, but the hard drive is making a clicking (actually more of a ticking) sound every 10 seconds or so. I was thinking of upgrading the 120gb hard drive (Fujitsu MHZ2120BH G1) anyway, as I have a spare 2.5" 500gb SATA drive. The model is a Seagate Momentus 5400.6 (ST9500325AS) - will this be OK? Do you think I'll see any speed increase, or should I get a 7200rpm drive instead? Thanks.