[fedora-virt] libvirt & VirtualBox (get some experience)

Hello everyone, I'm on Fedora 14 and I'm totally new to libvirt. I have experience with vSphere on servers and VirtualBox on the desktop. I'm looking forward to KVM but my desktop CPU doesn't have the virtualization extensions so I can't play with KVM at the moment. However, I would like to get some hands-on experience with the management tools (command line virsh and the GUI virt-manager). Can I really use these mgmt tools with VirtualBox as the back-end virtualization engine? That is, can I totally control my VirtualBox VMs (with libvirt) without needing to use the VirtualBox GUI at all? Thanks, Jorge