Attached Link: http://www.bsmooth.de/BSolutions/#TerrainEditor

well there is a lot to know about making realistic terrains. the first thing to do is get aquainted with the terrain editor. This means just messing around and seeing what everything dose. especially try out all the different fractals. the link above links to some tips & tricks about the terrain editor that are "hidden". the next part about making realistic terrains is the texturing. there is an extremely good tutorial on that here: http://www.bryceanworlds.com/pages/tips_tricks.html that is an extremely helpful tutorial. and the key to making realistic anything is ultimately practice. if you dont like the terrain editor so much and you happen to be using a mac then look at this alternet program: http://www.bsmooth.de i unfortunatly do not use a mac so i have not had the pleasure of using this program but from the looks of it.. id say its pretty cool. hope that was helpful -paul