First thing to decide is how will I partition my hard drive.

/dev/sda
  /dev/sda1 ext3 /     10240 MB
  /dev/sda5 ext3 /home 10240 MB
  /dev/sda6 ext3 /data 58547 MB
  /dev/sda7 swap        1028 MB

I used some useful resources to decide: