Upgrade hardware migrate os

I upgrade hardware on one computer. Migrate os to Debian etch. It rocks. Using virtualbox in it for other Os Windows Xp, 2003 for testing purposes.
Dual display is very good. How much ram is good for virtualization, minimum 2Gb Ram but I prefer 4Gb Ram and dual core for cpe.

Programming in c# using data binding techniques.

To make simple backup root partion in Linux do this

#cd /
#tar -zcvp --one-file system . > /media/another_partition/directory/backup-`date '+%d-%M-%Y'`.tar.gz