I have read about dual bootingopenSUSE 12.1 installation (dual boot with windows 7)

but i need i easyway like you have in ubuntu in which it install itself on free space(unlocated space) automatically.
I have dual boot window 7 & ubuntu . but now i want to replace it with Window 7 & open suse.
How can i migrate from ubuntu to open suse the easy way.
all my important data is in windows, i can sacrifice the ubuntu for open suse 12.1.