Recommended Hard Drive Size?

[sloaneparker]

Hello,

I am making a digital film on my Mac and will be purchasing a hard drive on which to store the footage.

What is the recommended hard drive size that I should get for such an endeavor? I am plan on my film being 60-90 minutes in length when complete, which means that a considerable amount of footage will be taken and therefore stored on the drive.

What do you folks suggest?

Thanks in advance.