Using a test bed machine is what I used to do. Usually I do that on my notebook, whereas it resembles my current production server. However, since I migrate all my servers from FC4 to Centos4.2, I still haven't got any test machine yet, the notebook is still on FC4.
I guess, I'll make a dual boot on the notebook between FC5 and Centos4.2 soon. Thanks, I'll research into the list archive. Luckily I've never deleted any list emails that I subscribe. :)
Dual boot ???
FC5 has Xen ... you can install CentOS within FC5 using XEN
Leonel