Simple Two node Configuration

[mmiranda@xxxxxxxxxxxxxxxxx]

Hi, i have a two node cluster running a voip aplication using postgres and
freeradius, its a active/pasive aplication using heartbeat for the failover
and mon for health ckeck, so far so good. 

     [Virtual Ip]
     [192.168.10.120]
            |
              |
                |
        |
____________|_____________
    |                 |
    |                 |
  __|__             __|__ 
 |     | Heartbeat |     |
 |     |-----------|     |
 |_____|           |_____|
 [Real Ip]         [Real Ip]
 192.168.10.121    192.168.10.122

Can these be done using lvs?, it appears to me that lvs is more a load
balancing solution that a cluster solution, i only have two servers and i
want high availability, if one node dies or the aplication hangs, the
services are "failed-over" to the backup server server, the virtual ip is
failed-over too, i have searched the web and the archives, but couldnt find
this specific solution, all related topic was about localnode, can someone
show the config for this scenario?, btw, many members of this list dont like
this solution for many reasons, should  i change the topology of this
project?
Any help will be aprecciated,

Thanks

---
Miguel