Had a quick look on Eurocarparts, for my Car they would be Ã‚Â£167 ish each side - With the Discount offered through the other Club, it drops from Ã‚Â£335 a pair to Ã‚Â£251. They are made by Lemforder
My Car being a 2.0 CDT.
I haven't fitted new Wishbones, but have had fitted two new Wishbone Bushes from Eurocarparts, a few months in and all still ok.
Aftermarket doesn't always mean cheap