Looking for inserts for a Seco toolholder

Hi all, I got a rough assortment of toolholders with my lathe when I bought it 2nd hand.

The cheap Chinese ones that chip the insert almost as soon as the cut starts, belong in the bin, but one toolholder that seems to be pretty good is a Seco CTGPR 1212-11, I have been having good results with this one, but the only insert that came with it, is getting a bit worn.

Can anyone recommend where to get replacement inserts at a reasonable price ?

Source: http://www.woodworkforums.com/f65/looking-inserts-seco-toolholder-148312/

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