First stab at finding directories with a lot of files in them.

Filecounter.sh

#!/bin/bash

## If your first variable is a path to a directory that exists, we'll search
## there instead of wherever you are.
## If you set a second variable that is a number, we'll use that as the cap. 

if [[ $2 = *[[:digit:]]* ]]; then
  CAP=$2
else
  CAP=600
fi

#Separate at line breaks, not spaces.
IFS=$'\n'

## this could/should definitely be more elegant. If you give a path I assume
## it is relative to your current working directory.
if [ "$1" == "" ]; then
   RUNDIR=$(pwd)
else
   RUNDIR=$(pwd)/$1
fi

if [ ! -d $RUNDIR ]; then
   echo "Sorry:" $RUNDIR "is not a directory."
else
   echo "Looking for dirs with more than" $CAP "files in" $RUNDIR":"
   # Find all the directories.
   for FOLDER in $( find "$RUNDIR" -maxdepth 4 -type d)
   do  
     for COUNT in $( find "$FOLDER" | wc -l)
          do  
          if [ "$COUNT" -gt "$CAP" ]; then
             echo $FOLDER        $COUNT
          fi  
          done
   done
fi