A good article by YB Lau Weng San...
http://wengsan.blogspot.com/2009/11/tugas-berat-2-ahli-dewan-negara.html

I personally feel that the majority of seats should be state representatives, and the balance minority be reserved for minority groups such as Orang Asli, etc.

We already have Dewan Rakyat which is chosen directly by the people to vet thru decisions by the cabinet and to make laws. It'll be good if the Dewan Negara is chosen by another method, i.e. appointment by respective state governments,

This doesn't dilute the power of the people, but gives for proper check and balance, where the 2 Dewans while working for the people at large come from 2 different sources, both of which are just as important.

We have seen state rights being eroded over the last 50 years, such is necessary for state governments to have a say in federal decisions.