Around 1998, Powell and My Dying Bride parted ways and he joined Anathema, in the role of live keyboardist, only to depart two years later.

In 2000, Powell joined the British extreme metal band Cradle of Filth[1] along with drummer Adrian Erlandsson and guitarist Paul Allender after the departure of Les 'Lecter' Smith.

In 2003 they released the album Damnation and a Day using a small orchestra and choral section for which Powell wrote the score.

In 2016 he wrote and played keyboards on Lawnmower Deth's first single after 22 years "I am Cob" which received airplay on BBC Radio 2 courtesy of Simon Mayo.

Most recently he played and composed keyboards for the Dutch band Bleeding Gods' album, "Dodekathlon" released February in 2018.