I have just signed up to one of these systems, you get the system cheaper as the seller claims the RECS for themselves, however if you claim the RECS yourself you will get a bigger discount, but there is heaps of paperwork to do.

For example I was quoted $5000 for a 3KW inverter system with 8X190KW panels with the seller claiming the RECS, if I claimed the RECS myself the same system would cost $3922.

I'm led to believe that the govt rebate ends at the end of June this year.

Hope this helps.

cheers