HANA Cloud access in AWS

Hello,

I was thinking of register with AWS for HANA cloud access. The openSAP training landscape contains two on-demand instances:

1. HANA Server on SUSE with the size: High Memory - Double Extra Large (m2.2xlarge)

2. HANA Client on Windows with the size: Standard - Medium (m1.medium)

But there is something called "Elastic IP, Data Transfer and Elastic Load Balancing. How do I configure those? Its bit confusing..Does CAL takes care of everything on its own or we need to provide the correct info's?

Can anyone provide the proper config in which way I can avoid extra cost by using AWS

Kindly suggest..

thanks

Avi