AFAIK the Panny PD30's are NOT end of line - they've only been on the market a few months.
As for where to buy, as ever the very cheapest places are on-line. Given your requirements for a 5 year warranty, our friends at John Lewis can probably help. They offer free delivery and free 5 year warranty, a very good return and refund policy and they will price match.
I order my TX32PD30 from JL Cheadle the other day and will pay £1150.
Cheers,
Paul