What is a good way..and easy?

[Dudelive]

I need to backup my partitions and would like a way that will allow me to reinstall the contents of the current partitions to another drive for safe keeping while at the same time being able to access any folder from the backup. There are 6 partitions 20 - 25gig each with over 75% used. So it must be backed up so as to get ready for building a new computer and the main reason is for safe keeping. Sounds complicated but there is a simple way to do alot of things and this is one of them I hope.

Thanks
Dudelive