Pies, ABC Magnum in Aldershot - http://www.abc-magnum.co.uk/
They can supply units in sizes that certainly Homebase and Magnet can't, put it that way.
That diagonal sink unit was the key to getting the workspace Mrs PP needed, and the tall units near the door have only a 550mm depth to fit into. They cut the units down to fit, and still left enough room for the microwave and the pull out baskets in behind the taller door. Nobody else we tried had a diagonal sink unit.....
That kitchen has been in production for 10 years or more, and every year, instead of releasing a new range, their supplier just adds more sizes of unit and door to expand the range. They have units in 100mm width step sizes that fitted our space EXACTLY where other companies only had units in 200mm steps, which would have left us with a space to the left of the sink on the end.
The inside is IDENTCAL in colour to the outside, not just 'close' like the Howdens kitchen her mum has, and the units don't need end panels either (It's all built the same colour) which gave us 10mm more at each end to play with and reduces the cost by a BIG amount. Some end panes are £70+ and we'd have needed about 6 of them, so it all adds up.
We've had 2 bathrooms and a kitchen from them. They have always been the cheapest and I can't fault their service either.
Oh, I constucted the shelves above the sink myself though, from an end panel.

Untitled by PeterPoddy, on Flickr

Untitled by PeterPoddy, on Flickr
Halfway through the fitting, but shows the baskets in the far cupboard, and the fresh plaster! (I know a superb plasterer as well, if anyone needs one?)

Untitled by PeterPoddy, on Flickr