On Thu, 18 Mar 2010 18:36:08 +0000, Bruce wrote:

If OOC is going to include interchanges with all those lines, there's
precious little point going on to Euston where interchange opportunities
will be far fewer. That will also save the not inconsiderable cost of
rebuilding Euston.

(I actually believe that there should be a NW London interchange (like
OOC), AND tunnelling all the way through to somewhere useful in the South/
East such as London Bridge or L'pool St so that it's not a pain to get to
from the other side of London....of course, I'll take it stopping at OOC
if it will just get built!)