diff --git a/tren.py b/tren.py
index 4bbac02..b9c9f33 100755
--- a/tren.py
+++ b/tren.py
@@ -9,7 +9,7 @@
 BASENAME = PROGNAME.split(".py")[0]
 PROGENV  = BASENAME.upper()
 INCLENV  = PROGENV + "INCL"
-RCSID = "$Id: tren.py,v 1.222 2010/08/19 19:22:04 tundra Exp $"
+RCSID = "$Id: tren.py,v 1.223 2010/08/20 01:18:23 tundra Exp $"
 VERSION = RCSID.split()[2]
 
 # Copyright Information
@@ -352,6 +352,7 @@
 eALPHACMDLEN       =  "Alphabet '%s' too short!  Must contain at least 2 symbols."
 eARGLENGTH         =  "%s must contain exactly %s character(s)!"
 eBADARG            =  "Invalid command line: %s!"
+eBADCASECONV       =  "Invalid case conversion argument: %s! Must be one of: %s"
 eBADINCL           =  "option -%s requires argument" % INCL
 eBADINSTANCE       =  "%s is an invalid replacement instance! Must be integer values in the form: n, n:n, :n, n:, or :"
 eBADLEN            =  "Bad line length '%s'!"
@@ -421,6 +422,21 @@
 #----------------------------------------------------------#
 
 
+# Case Conversion
+
+
+# Notice use of *unbound* string function methods from the class definition
+
+CASETBL = {'c' : str.capitalize,
+           'l' : str.lower,
+           's' : str.swapcase,
+           't' : str.title,
+           'u' : str.upper
+          }
+
+CASEOPS = CASETBL.keys()
+
+
 # Day And Month Conversion Tables
 
 
@@ -2066,7 +2082,15 @@
     # Force case conversion
         
     if opt == "-e":
-        pass  # Stick validation and storage logic here
+
+        # Make sure we support the requested case conversion
+        if val in CASEOPS:
+            ProgramOptions[CASECONV] = val
+
+        # Error out if we don't recognize it
+        else:
+            ErrorMsg(eBADCASECONV % (val, ", ".join(CASEOPS)))
+        
 
     # Force renaming of existing targets