Can I dump System O9

each time I purchase a new computer I have just transferred every thing over from the old to the new. But now as space gets tight on my 2010 MacBook Pro and as far as I know nothing on/in System 09 works on the Mac Pro and being a bit of a coward I thought I should ask, how do I handle deleting the old system:confused:

Thanks

via ehMac.ca http://www.ehmac.ca/showthread.php?t=114161&goto=newpost