LONDON (AP) -- Now it's all about the details:  The dress, the date, the venue - and who's going to pay.

Prince William and Kate Middleton sat down with advisers Wednesday to begin planning the royal wedding that some Britons have waited years to see - and the British media settled in for months of juicy speculation.

The second in line to the throne and his long-term girlfriend will marry next spring or summer, but they haven't announced a date - some say May is likely, others August - or a venue.

Westminster Abbey or St. Paul's Cathedral, where William's parents Prince Charles and Princess Diana married in 1981, are considered the front-runners.

A royal spokesman said the couple "spent the morning in meetings with household staff about the wedding" and would be closely involved in organizing all the details.

"It's very much their day like any other couple, and they will make the decisions all the way through - they want the day to be enjoyable for everybody," he said, speaking anonymously in line with palace policy.