Is the 42-day vote still too close to call?

As a partial counterpoint to Fraser's post, Ben Brogan writes on his blog:

"Mr Brown's spokesman a short while ago said if the vote were held now "the Government would not have enough votes to win". We are also told there is no deal with the DUP. And someone else on the Government side has just told me the advice is "brace yourselves". Certainly, the DUP are taking this to the wire." 

Of course, this is the message coming out of the Government, so take it with a pinch of salt.  But, even so, all signs suggest it will be very, very close either way.