Firstly, 60C is high but not outrageous - depends on the ambient temperature in your room, and whether your box has adequate ventilation all round.
My start-up temps are about 49C, and can increase to 65C if the house a/c is not on. BTW - 65C is the upper limit for cpus.
I adjust my fan speed to 80% in Avalaunch and this alone drops the temp by 5C, so any one of the mods mentioned will make a significant difference.
But don't panic too much, yr box will shut down if it overheats (71C) and if it doesn't shut down...it isn't overheating!
New 7200rpm HDs generate a bit more heat than stock, so advice is to drill holes in the tray, esp at the back where the fan expels air. This also helped my temps overall.
Good luck...Do Not Panic.