[newbie] Hard Drives

[direwoof]

Seeing how I am going to install Linux this weekend I have a question 
pertaining to multiple hard drives.
  I have 3 HD's that will be on the Linux box 6gb, 7gb & 30gb. In windows I 
normally partition the 30gb  into 4 7gb partitions so I have smaller 
clusters and am not wasting space.

Do I need to do this with the 30gb drive under Linux? Or can I just use one 
partition?

Thanks Lyndon