[CentOS] kvm, CentOS as guest / recommendations needed

Hello, I'm still searching for the ideal solution for Matryoshka-ing CentOS, i.e. using it as a guest under qemu/kvm. Given the fact that I'm a victim of this bug http://bugs.centos.org/view.php?id=2912 (5.2 host/5.2 guest) I'm stuck a little bit, so I tried different debian variants as hosts: sid unstable: ok proxmox VE: ok intrepid ibex (8.10): ok hardy heron (8.04): not ok

Using an intel-vt capable dual cpu server / x86_64 arc, with the above effect, what would you recommend to me as a host OS if I wanted to run CentOS 4.x/5.x and debian guests with kvm only? I'd like to administer the whole thing with virsh. TIA, regards Michael