easy_install --help
[...]  
--find-links (-f)              additional URL(s) to search for packages
[...]

1> Assume they're space separated:
sudo easy_install -f http://codespeak.net/svn/z3/deliverance/trunk#egg=Deliverance-dev http://codespeak.net/svn/z3/deliverance/DeliveranceVHoster/trunk#egg=DeliveranceVHoster-dev PasteScript DeliveranceVHoster==dev

[...]

Searching for DeliveranceVHoster==dev
Reading http://www.python.org/pypi/DeliveranceVHoster/
Couldn't retrieve index page for 'DeliveranceVHoster'
Scanning index of all packages (this may take a while)
Reading http://www.python.org/pypi/
No local packages or download links found for DeliveranceVHoster==dev
error: Could not find suitable distribution for Requirement.parse('DeliveranceVHoster==dev')

2> Assume you can give multiple arguments:
> sudo easy_install -f http://codespeak.net/svn/z3/deliverance/DeliveranceVHoster/trunk#egg=DeliveranceVHoster-dev -f http://codespeak.net/svn/z3/deliverance/trunk#egg=Deliverance-dev PasteScript DeliveranceVHoster==dev
Searching for PasteScript
Best match: PasteScript 1.1
Processing PasteScript-1.1-py2.4.egg
PasteScript 1.1 is already the active version in easy-install.pth
Installing paster script to /usr/bin
Installing paster script to /usr/bin

Using /usr/lib64/python2.4/site-packages/PasteScript-1.1-py2.4.egg
Processing dependencies for PasteScript
Searching for DeliveranceVHoster==dev
Reading http://www.python.org/pypi/DeliveranceVHoster/
Couldn't retrieve index page for 'DeliveranceVHoster'
Scanning index of all packages (this may take a while)
Reading http://www.python.org/pypi/
No local packages or download links found for DeliveranceVHoster==dev
error: Could not find suitable distribution for Requirement.parse('DeliveranceVHoster==dev')

3> assume they're comma-separated:
> sudo easy_install -f http://codespeak.net/svn/z3/deliverance/DeliveranceVHoster/trunk#egg=DeliveranceVHoster-dev,http://codespeak.net/svn/z3/deliverance/trunk#egg=Deliverance-dev PasteScript DeliveranceVHoster==dev
Searching for PasteScript
Best match: PasteScript 1.1
Processing PasteScript-1.1-py2.4.egg
PasteScript 1.1 is already the active version in easy-install.pth
Installing paster script to /usr/bin
Installing paster script to /usr/bin

Using /usr/lib64/python2.4/site-packages/PasteScript-1.1-py2.4.egg
Processing dependencies for PasteScript
Searching for DeliveranceVHoster==dev
Reading http://codespeak.net/svn/z3/deliverance/DeliveranceVHoster/trunk#egg=DeliveranceVHoster-dev,http://codespeak.net/svn/z3/deliverance/trunk#egg=Deliverance-dev
Reading http://www.python.org/pypi/DeliveranceVHoster/
Couldn't retrieve index page for 'DeliveranceVHoster'
Scanning index of all packages (this may take a while)
Reading http://www.python.org/pypi/
No local packages or download links found for DeliveranceVHoster==dev
error: Could not find suitable distribution for Requirement.parse('DeliveranceVHoster==dev')