hi there,
Varying 'views' on this - as yet, there isn't a 'slump' as such with the housing market. There is a feeling of potential buyers 'holding off' as a result of the interest rates rises biting into more and more people's pockets - so i think there's a 'slump' in potential demand.
The same thing happened around August 2005, after a raft of interest rate rises, sales flattened off as people became cautious. House values then and now continue to rise and that's becuase of the Supply/demand ratio. Overall, there is STILL a severe lack of housing in the UK, becuase of that, property becomes sought after and hence prices rise.
currently, the 'values' of property haven't 'slumped' like the 1989 crash and aren't likely to either. Borrowing money is still relatively very cheap, combine that with the British 'psyche' of wanting to own their own property, it becomes 'popular' to do - hence the tripling of prices over the last decade or so.
There are areas of the UK where sales/exchanges will be slower and I'll hazard a guess that maybe those who've not had a viewing etc 'could' be in those areas and/or slightly higher asking price etc. Remember, it's the price the property will sell at which 'counts' (i'm not saying its only that of course!!)
So although theres lots of reports of 'wobbly this and that' and 2 year lows in new sales/exchanges' on one hand and 'prices still rising' and 'new development sold out' - I think the 'overall' view is that if you are wanting to buy, and can afford to do so sensibly, then go ahead and buy - think along that supply/demand ratio. It's a fallacy to hold off if you are in a position to buy now if you 'think' the prices will come down significantly within the near future. After the dot.com boom, many people thought ok, lets wait till prices tumble, and they did to an extent, then along came sept 11th and markets jittered everywhere, indexes were at record lows and all that, and people thought right, house prices are surely going to crash spectacular style a la 1989.
It didn't happen -
Interest rate cuts helped people (including me) to borrow - house prices went UP in that very bleak economic period of 2000-2002ish.
With demand substantially outstripping supply in almost all areas of the UK, prices are not 'likely' to crash - unless there's some major economic turning point in the near future.
For those trying to sell, all the other tricks come into play - making the property more desirable, fixing odds and ends, maintenence, additions etc etc all help in selling the property - I suggest spending some time investing in making your property more marketable in order to 'tempt' potential buyers ...

Good luck!
Cheers! DtM! West London & Slough UK!