well the key to making a drive last longer is
defrag it every month
so its not searching for the files when they are all mixed up
and the other option is keeping it cool with fans
or using this below
http://www.anandtech.com/show/2578or better still a Water cooling systems might be better in your case
because of the overload it might get.
keeping the hard drive at optimum temperature
will make it happy and work with out over heating.