You can always run VMware server or virtualbox and install a complete 32 bit system on the same host for a real build/test environment.
Don't forget about KVM. It just a yum install.
Neil
-- Neil Aggarwal, (281)846-8957, http://JAMMConsulting.com CentOS 5.4 VPS with unmetered bandwidth only $25/month! 7 day no risk trial! http://UnmeteredVPS.net for details.