Good move by mds69 pulling the sites up on his phone at the dealers!
Keep an eye on the VAT as VW only covers orders till mid Nov and delivery up to 28th Feb 2010 if I recall, if not then you'll get hit by a further £500-£600 odd pounds depending on options etc.
Ran a few sites based on a 5 door manual with some goodies added for examples:
Carfile can get you about a 4% discount off base (very nice guys, very helpful), you also end up paying and dealing direct with the dealer so no having to hand over cash to a 3rd party etc.
Bettercardeal web site was about £1,100 (check slots and VAT increase)
DealDrivers web site was about £1,200 off (check slots and VAT increase)
buyacar web site came back with only about £800 (as their original price included scrappage so take that off and drops to about £800).
autoebid.com was according to their site about £1,900 off (which did seem a little too good, but hey!)
The above is nothing more that a few quick checks I did against web sites and calling up, so it's worth spending 1/2 a day over web sites and calling them up. Then go into the dealer and be surprised as they match the price (otherwise walk away!) as most of these brokers seem to put you in touch with VW dealers anyway.
When I was doing my own calling around I found that some brokers made me a little uncomfortable by asking that you had to pay them the dosh, or which included a 3rd party contract or you getting put down as the second reg keeper (when they got hte discount via a fleet purchase). But apparently (according to their sites) lots of people have done this with no problems etc. So I guess it's down to your personal choice if you'd be happy with this type of arrangement for me personally preferred ones who then directed you to pay and deal with the dealers (but that’s just me).