ActiveState Komodo is a programmer’s IDE for Linux, Mac OS X, and Windows that is tailored for programming with a number of dynamic languages such as Perl, PHP, Python, Ruby, and Tcl.
I came across this post the other day which gives the promo code kmd3n9-ur8 for getting Komodo Personal Edition for free, but says that the code was supposed to expire Dec. 2005. I gave it a whirl and I was surprised to find that it works.
If you’re interested in Komodo, give it a shot. You’ve got nothing to lose.