CentOS - Jul 2009 - KVM on Dissimlar HW

Greetings,

Can somebody share their experience regarding live migration of guests
using KVM under Centos 5.3 (noted that 5.4 beta is out there) with
cluster, GFS on DRBD and dissimilar hardware such as Xeon and duo core
assuming sufficient memory is available on the target.

TIA

Thanks and Regards,

Rajagopal