DHCP service with 2-node Majority Node Set cluster?

Hello there!

I have one Windows Server 2003 R2 running DHCP service which is
located at Building A.  Now I want to have a high availability for
DHCP service, by installing a Windows 2003 server at Building B which
is ~ 300m away.  I want the DHCP service to failover to the server at
Building B in case there is disaster at Building A.

The issue is that in Windows I will need a geographically dispersed
Windows cluster for that, but we can not afford a shared storage
required by MSCS (NetApp box with MetroCluster is quite expensive).

I read that in RedHat Linux with ISC DHCP, you can simply set the DHCP
daemon to enable the failover feature. The thing is that my company
does not want to spend on Linux support and its operational cost.

I read that it is possible to create a 2-node Majority Node Set
cluster
(http://msmvps.com/blogs/clustering/archive/2006/07/09/Majority-Node-Set-_2800_MNS_2900_-with-only-2-nodes_3F00_.aspx)
but I do not have real experience on MNS cluster.

Could anyone shed me a light the pros and cons of using 2-node MNS
cluster for DHCP service?

Or is there a way to make Windows DHCP service capable of failingover
like the ISC DHCP daemon?