But apart from that I cant really say much about where you can buy it from locally. I would say that with infinity I soon got used to internet ordering as there aren't many carriers in my area. At least we have slave to painting here though so its still kinda easy.
As good a marketing point as any is you are gonna give him money I suppose...
edit; My search powers turned up nothing for brick and mortar retailers in your area. I gather that a lot of people just by their models online. So here's a couple of decent sellers:
http://www.waylandgames.co.uk/infinity/cat_314.html http://wargamingtrader.com/infinity or
ofc CB themselves...
and there also a guy on here who sells them, splits box sets as well I gather. Never got anything from him myself, but he's been here a while so must be pretty legit. Shae Konnit.
Coincidentally it seems wayland has a deal for free shipping on orders over 40 pounds for February, so it doesn't matter its coming from England it you get enough. /Also we're allowed to chuck shop links and stuff on here right?/