Thanks for your replies and the outcome is.... Lexus, Exeter have just pressed the button and ordered an LE for March 1st registration ! All I have to do now is keep this one safe for a few weeks. I hate that bit. Our South Somerset roads leave much to be desired and are awash with elderly drivers waiting to launch surprise attacks, tractors lying in ambush and pot-holes the depth of Loch Ness. Thank goodness it's not yet caravan season.
I test drove the LE, last weekend, and it was great but the deal clincher is the offer of 3 years free servicing on cars registered before March 31st. Of course, HID lamps, full leather and the arm-rest all help. Damn, I'm excited now. :D