Last month, there was an Ask Tahj Holden (1999-2003) thread on TerpSportsReport's forums, and I missed it. On page 2 of the thread, Tahj says he's rehabilitating an achilles injury and coaching a JV girls' high school team in San Diego. He'd consider playing again if his injuries healed, but right now he's focusing on getting into coaching. Tahj also has a lot of great stories and nuggets of information about his playing days at Maryland in that thread.
Tahj Holden's pro career was short, playing in 2003-04 for ITU Istanbul in Turkey.