[CentOS] How to list virt machine size with virsh?

I have started to migrate one CentOS5 machine from xen to kvm. The stability of the machine is much better (too much crashes with xen). I was used to do a "xm list" to get a list of clients. On the KVM machine I need to do a "virsh list". What I miss in that overview is the memory size of clients. I found "virsh dominfo <client>" but that is for just that one client (and I have several running). The same question for "xm top". I found that there seems to exist virt-top, but I could not find this in a repository for Centos5.

virt-manager is a little overkill on this machine (it does work though but I like command line quick info).

Theo