Uhhh...hold on a sec soganatsu. I think you're talking about MagicWorld, it's made by the same guy. MagicWorld is great, but the only problem is it uses matrices.
Total Terrain is free, but doesn't have features like importing objects, exporting .x, etc. It DOES, however, make much smoother terrain than possible with a matrix. So if you can get a heightmap reader like the ones available for Milkshape3d, then I recommend getting those and Total Terrain and you'llhave nice smooth maps that run fine in DB.
Crazy Donut Productions
Current Project: KillZone