i agree. just get the fastest HDD you can afford. perhaps you can get one significantly faster than the one you have that also has enough space to last you a long time. keep in mind though that you should backup. if a drive dies it would suck to set you back weeks on your work.
i already use 7200rpm hdd. Maybe add 10000rpm hdd is better..?
And for backup, yeah, i always backup, in a same drive
. Sorry, kidding. I store most of my important work on cloud, my drive filled up with many unimportant but "don't want to delete them because i feel that i want to rewatch or replay them
" files. Hmm..