[QUOTE=alanR;18716522]Why? As others keep pointing out Paddington is in the wrong place for most tourists who could reach their destination almost as quick, if not quicker, than the HEX, let alone the HEC. As you have Oystercards just use them on the Tube from Heathrow at a third of the cost

We're staying in Maida Vale, so Paddington is just as easy at the Piccadilly line in from LHR. I'll take a look at that daysoutguide.com site, that sounds like it could be good!

Thanks for the very useful information about how National Rail fits in to what I thought was a London Underground thing, I wouldn't have thought it did. I guess it's sort of like that Parliamentary train line that I read earlier on this blog, one of those uniquely English ways of doing things!