Not really a bargain, per se, but it hasn't been mentioned on OzBargain yet, so thought I'd add it for future reference.
They offer free shipping for all orders $50 and over, and will also price match Amazon (on the total price, including shipping costs), which works out pretty good sometimes, usually for larger orders.
They're also on Moneybackco (7%)
Also be warned that the offer only applies to a single item. This isn't particularly clear on their offer.
I placed an order for two books that would have been cheaper had I purchased at Amazon. Fishpond apply the individual Amazon shipping rate when calculating, not the actual combined shipping rate, so the figure they use for comparison is artificially inflated.
Given that to qualify for the Fishpond offer you'll likely need more than one item (must qualify for free shipping), I don't think this offer is of much benefit.
I went and checked whether they can do price matching on Amazon and found this:
Good stuff! However do note that they don't sell you cheaper than Amazon, but instead they refund you buy store credit.