General Election 2010

are you fucking serious?

yup

do you think that somehow having proportional representation is going to make your vote count for three votes,
Yes - exactly.

In fact, on average, it's more like 4 votes. See: http://www.voterpower.org.uk/ (great little web page that VB posted in the thread when the spoiled ballot issue came up earlier). Assuming you live in the same place, Teddy, your vote would be worth more than 10x as much under PR. And the Conservatives are likely to win your riding, and they're likely to do it with less than half the popular vote.

or somehow magic one of the non-major parties into forming the government?
Of course - that's how PR works. There will be coalition governments. Those coalitions will be made up of the big parties and the little ones. So if you vote for the Marxist-Leninist Party of GB, and Labour and the Lib Dems need another seat or two, you may have the party you voted for form a government.

the only way the non-major parties are going to ever become serious options is by them a) getting votes, and b) getting funding.
Not very likely in this system.

your vote counts for something. if you don't spoil it.
Spoiling your ballot is a legitimate action, one which is counted, and which makes a symbolic statement.

Anyway, people are voting now. Go vote!