On Sun, 7 Jan 2007 14:04:44 -0000, "Brian Watson"
wrote:

I have to do this trip on Thursday morning after 9am.

I think Central line to Holborn, then Piccadilly out to Heathrow looks
quickest and easiest.

Is that the best route, d'you think?

Are you going to be carrying luggage? Holborn's not my favourite
interchange, and if I had a lot of luggage, I'd be tempted to take the
easier (though slower) route of Circle line round to Monument, then
District to Barons Court and then Piccadilly to Heathrow.