Starting a Litecoin mining rig

For mining purpose I built a rig with the following hardware components:

CPU: Intel i3-530 socket 1156
Motherboard: Gigabyte GA-H55M-UD2H
Memory: 4GB DDR3 Dell
Harddisk: Bootable USB stick 2GB
PSU: Recom PE-M500
GPU: GV-R797TO-3GD

I followed both these instructions: Rumorscity Rig and Rumorscity BAMT. So the software I'm using is: litecoinbamt1.2.zip. Below is the current working setup with a hashrate of 580 Kh/s (0.58 Mh/s).

I used  the following cgminer config (screencopy):

The hashrate should be around 720 Kh/s and also the PSU is just enough, but I want to add an extra R5770 card. So in the following posts I will try to figure out how to get there.