Someone mentioned autobahnstormers but I've had a look at the site and can't see how to get one can someone point me in the right direction?
Cheers Rich
You need to join the club, about £25 per year, and then they'll send you a membership card which will entitle you to Trade Card prices - provided that you can convince your local Vx part dept. The cynic in me though says that Vauxhall will eventually close this method of getting a card if everyone & his wife is entitled to a TC account. 
Believe it or not, I have more hassles convincing the dealer to accept my real Trade Club card than the ABS card. The ABS card comes with a slip of paper that tells dealer who to call (within Trade Club) if they are unsure.
ABS membership is £20 per year, though you have to own a 6 cylinder (or 'have an interest in') Vauxhall. The ABS club tends to cover older Vauxhalls, so their coverage of Omegas is a bit weak, so you still need to come here for help

Other clubs do TC cards cheaper, but I recommend ABS.
ABS - £20, promptly get your card
MIG - £15, but can be slow
VxON - £15, but afaik have never sent a card out claiming they are waiting for stock (I find difficult to believe), so many are signing up for 2nd year without TC access.