Polls indicate that this is an impending landslide election. The most recent poll:
March 2007
PC: 73% (+3)
Lib: 19% (nc)
NDP: 9% (nc)
I have not seen a party poll so high in any poll ever.
I think the BC Liberals were polling at 74% in the 2001 provincial election (they got 58% of the vote and 77 seats of 79, defeating the NDP government).
From what I know of Newfoundland, some of the rural areas are very, very staunchly Liberal and may even be able to withstand a swing of New Brunswick or British Columbian proportions.