Well, number of seats is typically based on past census numbers, but we haven't caught up to the 2006 census yet. Alberta's population grew by leaps and bounds between those census and continues to grow now. Given the boom and influx of people it may be a while before the seats
opulation ratio is the same between Alberta and Quebec.
As for the Bloc, so long as they don't read a surge in the polls as an increased interest in separatism, then they are benign. The recent swing towards the Bloc is due to people not knowing where to park their vote. They don't like the Conservative policies and don't want to see them get a majority. However, they are still stinging from the Liberal sponsorship scandal (most of those that took the money and ran were in Quebec, which they see as backstabbing). This leaves a lot of people not knowing where to go. The NDP and Greens are excruciatingly slowly picking up support, but most see the only party capable of keeping the Conservatives *AND* Liberals out of office is to vote for the Bloc.
And the Bloc definitely is going to put Quebecs needs first. Certainly above the needs of the rest of the nation. If there was a party that you knew was going to go to Ottawa and fight for the needs of Alberta above the needs of the rest of the country you might be inclined to vote for that party. (Some would say we're already there) I know more than a few people that have voted for the Bloc their entire lives but have absolutely zero interest in separation. They just feel that their policies best match their own world view EXCEPT for separation.