Euca2ools programs don't hard-code things like URIs, so you typically
need to specify more in the environment to get them to work with AWS.

I recommend setting everything of importance up in your shell's rc file.
For instance, my .zshrc file contains something similar to this:

I set up little functions in .bashrc, so I can change out keys; then I had one of them called by default ;)

So there's "mykeys," "devkeys," "dckeys" - etc - switches out so the command line tools (such as euca2ools) work.

Just a little tip on what I did. I'm clearing out that stuff from my shell environment now (putting the info in ldap, and my tools query ldap for my info) but it's safer than specifying things on the command line (where it would show up in a ps).

Brian