I still think that for you best of all is to use uwsgi without nginx - simpler setup, less layers, I use it and I can't say that it is less performant then nginx+uwsgi
my webfaction setup - web2py folder is in /home/myuser/web2py - myuser and myport are my webfaction user and wget http://projects.unbit.it/downloads/uwsgi-1.2.3.tar.gz tar xvzf uwsgi-1.2.3.tar.gz cd uwsgi-1.2.3 /home/myuser/bin/python2.7 uwsgiconfig.py --build mv uwsgi /home/myuser/bin uwsgi --http 127.0.0.1:myport --pythonpath /home/myuser/web2py --module wsgihandler -d /home/myuser/tmp/uwsgi.log -t 20 -r --no-orphans --touch-reload /home/myuser/tmp/uwsgireload.txt --evil-reload-on-rss 100
