Sure is. Now stir in a carefully configured copy of 'Valve hammer' to make your BSP's available from:
http://collective.valve-erc.com/index.php?go=hammer
and a pinch of half life (just buy it, if you don't have it) to test your maps with and you've got a recipe for BSP heaven. As a rule; if it runs correctly in half-life, it'll run in DBPro.
WARNING: DBPro's BSP support is very twitchy at the moment and the scale of BSP maps is tiny, but Update 6 promises to sort BSP out.
Good luck
I've been an evil frikkin' doctor for 30 frikkin' years, OK!