This site displaying all the various poll results and predicting seat counts is rather engrossing:
http://predictor.hillandknowlton.ca/
The way I see it that the CPC is bankrolling on either a Harper majority government or a Liberal minority. Why a Liberal minority? The economy is starting to point down, so the CPC and its brand spanking new leader (since if Harper loses this election which he seems to equate to one on leadership, he's outta here. I'm thinking Jim Prentice would be perfect material for new leader.) can bring down the government in '09 or '10 and say "We tried it the Liberal way, Canada, now give us that majority government we've been asking for."
The present worst-case scenario (for the Conservatives) is another minority government, and it's the one the polls are currently bearing out. I personally am looking forward to it because:
I like some of what the CPC has done, but Harper's overbearing act is wearing a little thin, as are the acts of Calgary Tory cohorts Jason Kenney and Rob Anders.
Stephane Dion is lighting no one's world on fire. Ignatieff was always better and more eloquent leadership material.
It will be a tacit admission that an election really wasn't necessary in the first place since we're back at square one.
It'll be a chance to freshen up the opposition. If the Bloc does poorly, goodbye Gilles Duceppe. He's been party leader for over ten years and I think they need to change direction. (But the Bloc has done so well in Quebec since 1993, I don't see it happening.)