I hear you. I ordered one generic/universal set off ebay that DID have a GC connector, but it only worked in B&W (the PS2 worked fine in color, but I already HAD one of those). So I don't particularly recommend ebay. They're $40 if you buy direct from the Big N.
So I looked for used, stalking the gamestop site until I found a local-ish store with a set in stock. The price point is great -- less than $10. However, I can't seem to find them anymore on the website...