The Friends star and the Snow Patrol rocker, announced their engagement in June,14, jetted into McDaid's native Northern Ireland last month Jul,14 so Courtney Cox could meet her fiance's family.
The couple is also believed to have visited a number of potential wedding venues, and have picked Ashford Castle in County Galway in Ireland for the ceremony, according to The Sun.
They plan to marry there by the end of the year and follow it up with an extravagant party in Los Angeles.
A source tells the newspaper, "Johnny took Courteney to Ireland to meet his family and they fell in love with Ashford Castle. They want to get married at the end of the year and have a big bash in L.A. on a Malibu Beach at the end of the year."