[Gandalf Parker]

Have you seen my maps?
http://www.dom3minions.com/maps.htm

Here is some of the code from one of my map generator scripts.

SZ=400
GCOL1=" 50 100 50 250 "
SCOL1=" 20 50 80 220 "
BCOL1="  111 194 21 50 "
SBCOL1=" 36 119 202 29 "
OTHR=' --mountpart 50 --farmpart 20 --mapnoise 110 '


for x in `seq 1 9`
do
  uptime >>$LOG
  dom3 -T --makemap $MAPNAME_0$x --mapsize 2400 3200 --mapprov $SZ \
    --mapaa $OTHR \
    --mapgcol  $GCOL1   \
    --mapscol  $SCOL1   \
    --mapbcol  36 119 202 29 \
    --mapsbcol 111 194 21 104

It sets colors (I really prefer my maps green)
and it sets the moutains much higher to create lots of strategic chokepoints. I tend to run them in large batches on my server then look for ones that I feel are particularly worthwhile. Such as...
http://www.dom3minions.com/RandomMaps/Keepers/