"No problem. Clone your hole partition, install the new Leopard on a seperate partition and at the first start select "Import data from another Device on this Mac". Select your cloned partition, check "Applications", "Personal Files" and so on. It will take a while, but it'll import your hole stuff to your new system. After that you can remove your "old" partition and add the free space to your new partition.

-crawle "

Thx - i will definitely try that on the next upgrade

scott