GNU Smalltalk is script based and while it's got support for images you don't have to use it if you don't want to. You can write a viable program by just creating a script with #!/usr/bin/gst at the top.

It also comes with Seaside, which is a pretty nice web app framework, and will run out of the box. Instructions here:

http://smalltalk.gnu.org/blog/bonzinip/seaside-development-g...

Neat, thanks for the pointer. Can you speak to what another commenter said about GNU Smalltalk being a not-particularly-great implementation?

All I have is anecdata, and stale anecdata to boot, so it would just be misinformation. I do see that the last release was two years ago, though.