Life Extension is offering their Mega EPA/DHA product for $6.98 as part of their latest Overstock Blowout sale until June 11, 2012. This is a high concentration fish oil product that features 360 mg of EPA and 240 mg of DHA per softgel. Compared to many competing products, it has a fraction of the cholesterol and calories per the amount of omega 3 fatty acids. And at this price, it is very cost competitive.
For an in-depth comparison of two Life Extension fish oil products and two Costco fish oil products, see the article Selecting An Omega-3 Fat or Fish Oil Supplement.