Buchanan still holds Virginia baseball season records for home runs, slugging percentage, and total bases.

[4] From 1994 through 1997, Buchanan played in the New York Yankees' minor league system, advancing to the Triple-A level.

While playing at Class A Greensboro, a horrific ankle injury in the spring of 1995 nearly ended Buchanan's career after his left foot hit first base at an awkward angle.

[5] The New York Yankees traded Buchanan, Eric Milton, Cristian Guzmán, and Danny Mota to the Minnesota Twins for Chuck Knoblauch on February 6, 1998.

After the 2006 season, he joined the Fukuoka SoftBank Hawks in Japan, after two years playing in the minors for the Rochester Red Wings, Colorado Springs Sky Sox, and Louisville Bats.

During the 2007–08 offseason, Buchanan signed a minor league contract with the Kansas City Royals and became a free agent after the season.

He was named as the hitting coach for the Omaha Storm Chasers of the Pacific Coast League and the Triple-A affiliate for the Kansas City Royals on January 10, 2018.