On my new computer I decided to try out kubuntu, and I've done up my partitioning as follows :
sda1 : /boot : 128MB (ext3)
sda2 : / : 75GB (reiserfs)
sda5 : /home 75GB (reiserfs)
sda6 : swap : 1GB
Installation went fine, and I told it to put GRUB on my second hard disk, the first one...