diff --git a/.travis.yml b/.travis.yml
index a5b6d7d91..7dec96cf1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,7 +22,8 @@ env:
     - TOX_ENV=py2.6-django1.4
 
 install:
-  - "pip install tox --download-cache $HOME/.pip-cache"
+# Virtualenv < 14 is required to keep the Python 3.2 builds running.
+  - "pip install tox 'virtualenv<14' --download-cache $HOME/.pip-cache"
 
 script:
     - tox -e $TOX_ENV
diff --git a/rest_framework/compat.py b/rest_framework/compat.py
index 8979339c1..b0150f3d5 100644
--- a/rest_framework/compat.py
+++ b/rest_framework/compat.py
@@ -73,6 +73,12 @@ except ImportError:
     from collections import UserDict
     from collections import MutableMapping as DictMixin
 
+# http responses move in Python 3
+try:
+    from httplib import responses
+except ImportError:
+    from http.client import responses
+
 # Try to import PIL in either of the two ways it can end up installed.
 try:
     from PIL import Image
diff --git a/rest_framework/response.py b/rest_framework/response.py
index 3ec63f403..27098d75b 100644
--- a/rest_framework/response.py
+++ b/rest_framework/response.py
@@ -8,7 +8,7 @@ from __future__ import unicode_literals
 import django
 from django.template.response import SimpleTemplateResponse
 from django.utils import six
-import httplib
+from rest_framework.compat import responses
 
 class Response(SimpleTemplateResponse):
     """
@@ -80,7 +80,7 @@ class Response(SimpleTemplateResponse):
         """
         # TODO: Deprecate and use a template tag instead
         # TODO: Status code text for RFC 6585 status codes
-        return httplib[self.status_code]
+        return responses.get(self.status_code, '')
 
     def __getstate__(self):
         """
diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py
index c7a5de987..29df9299d 100644
--- a/rest_framework/serializers.py
+++ b/rest_framework/serializers.py
@@ -1079,12 +1079,12 @@ class ModelSerializer(Serializer):
                     fk_field = obj._meta.get_field_by_name(accessor_name)[0].field.name
                     setattr(related, fk_field, obj)
                     self.save_object(related)
+                elif isinstance(related, list):
+                    # Many to One/Many
+                    getattr(obj, accessor_name).add(*related, bulk=False)
                 else:
                     # Reverse FK or reverse one-one
-                    try:
-                        setattr(obj, accessor_name, related)
-                    except ValueError:
-                        getattr(obj, accessor_name).add(*related, bulk=False)
+                    setattr(obj, accessor_name, related)
             del(obj._related_data)