Have a look at Barratt Developments Plc on Google Finance:- http://www.google.co.uk/finance?client=ig&q=LON:BDEV
I don't know enough to say whether this view of the shares is any good, but you do at least get the (seemingly) all important volume along with the price. I know Bubb and the others seem to prefer BigCharts, but I think google is an easy and accessible way of at least getting started with these things.