Hi Phlix,
I think I may have contacted you when I was considering buying the Samsung LW32A23WX which I have since bought, (they only had one left!!). I managed to get the wall stand from Robertsons online about a month ago, but it was an anxious wait for at least three weeks. I thought at one stage they wouldn't be able to get it as they had delays with the order. I don't know if they are still able to get hold of it as it is no longer advertised on their site but you might as well ring them. I was only charged just over £50 which I thought was excellent at he time compared to others who were asking nearly £100.
I think they now are like rocking horse poo as i'm sure you're aware they have discontinued the model.
When it finally arrived, I was really impressed. It is of a very high quality & is nice/sturdy. I have to say It finishes the TV off nicely.
You could buy a generic mount but I would advise to go for the proper one & wait the 8 weeks for it to arrive. If you can get it, I'm sure you're be glad you waited.