I love this site it is helping me a lot improve my cooking, thank you for all the great advice.
I wanted to give something back but as an amateur in the UK I do not know enough to offer anything helpful to people of your calibre except....
If you American guys are using British Worcestershire sauce then you are using a great ingredient already, but I can tell you something you may not know, Worcestershire sauce is not the Daddy of spicy British relish.
Henderson's relish is king over Worcestershire sauce, so if you want to use the best possible sauce give Henderson's (Hendo's) a go and you will using something that most people in the US proabbaly have not even heard of.
I am not in anyway affiliated or linked with Henderson's, give it a google, those people in the know and in Yorkshire will tell you it is tops