Following the completion of the 2001 season, McGill sought to transfer schools and left UNC Charlotte for UC Santa Barbara.

He also assisted on UC Santa Barbara's first-ever NCAA postseason goal when he passed to Rob Friend against the University of San Diego.

Despite the honour, McGill passed on Major League Soccer, instead opting to sign with Dublin City in his native Ireland.

[8] That season, McGill helped the Vikings to promotion to the League of Ireland Premier Division after scoring Dublin City's winning goal in the first leg of a two-legged play-off victory over Shamrock Rovers.

[9][10] McGill remained at Dublin City for the 2006 season as part of their League of Ireland Premier Division campaign until the Vikings went out of existence due severe financial issues in July 2006.

[11] McGill did not wait long to find a new club when he joined League of Ireland First Division leaders Shamrock Rovers.

A lifelong Rovers fan, he made his debut for the club on 28 July 2006 against Athlone Town at St. Mels Park in a 3–0 victory for the Hoops[12] and went to win the First Division with two goals in fourteen appearances.

McGill's second stint at Mount Merrion was again short-lived when he made a return to League of Ireland First Division action by signing for Shelbourne on 29 November 2007.