Layout
Help with layouts:-
Anyrail.com produce an excellent track layout program .. a demo is available here:-
Anyrail.com
At present (04/09/10) we stock:-
Complete range of Hornby track.
A selection of the Bachmann range of  Scenecraft buildings as (in my opinion) they are better quality and value than the equivalent Hornby range.
Metcalfe card buildings (most are currently in stock). Wire, bits, bobs, switches.

Also Peco OO and N gauge track.

We have a selection of Bachmann and Hornby waggons and locomotives and DCC conversion chips and controllers.

The opposition  have produced a very helpful website here - hopefully one day mine will be as good .. but until then I have to recommend theirs.
Everything you need to know  about DCC  (and more) here