This one is pretty good also, far more for much less.
http://www.healthpost.co.nz/shopn/spi//HPOST_SPEC

Just type into the search fish oil (and have the brand NFS).

I've used it. 200 capsules (1200 mg) for $22.50. 100% NZ export quality. molecularly distilled/mercury tested.

It may not be quite up to the Nordic Naturals quality, as some of the fish oils contain more DHA than others, but seems ok to me.