as ive mentioned before. people can still get very very good rates if they have 25% to put down!
I think that's part of the 'problem', a lot of people don't have 25% to put down. And what's more, it is getting increasingly difficult to get mortgages with >90% LTV, so all those people who were boosting the market by coming onboard with little or no deposit are now being crowded out.
A while back, a couple earning say £40k/year could buy up a house with maybe only £5-10k saved up. Whereas now they have little option but to either buy a much cheaper property (driving down the average price), or rent instead. Affording the repayments isn't an issue for them, it's just that the chosen lifestyle to date hasn't involved building up a lot of savings.
Of course, I'm not necessarily saying that this is a bad thing - just that it's a reason for downward pressure on house prices.