kvm and non-nat networking

[Dr. Michael J. Chudobiak]

Can somebody point me to the correct method of configuring kvm 
virtualization so that the guest OS (Windows XP in my case) appears as a 
simple IP address on the host LAN (participating in local subnet 
broadcasts, etc)?

I have kvm running now in the default mode, which implements NAT / DHCP. 
It works great, except I have some stupid Windows apps that need to 
communicate with stupid network appliances on the main LAN. They need to 
appear as same-subnet devices to the Windows apps.

There is a little too much info out there about kvm/qemu networking, 
most of which is obsolete. Pointers appreciated!

- Mike