I'm finding that working inside of Flash is slowing down my pace significantly while coding. So, I've been trying out other editors and none of them are giving me enough power to get away from the editor provided with Flash, but I simultaneously can't stand the way I am forced to edit in flash. You know, one panel for code and all that jazz.
I saw FAME (for eclipse) and tried it out, but its autocompletion is a little off, and it doesn't do anything nearly as helpful as it does for java. Like, when you open a parenthesis it doesn't tell you what arguments are expected (as Flash does), but the organization feel is a ton better. I just know I'm going to be alt tabbing back to flash for the function look ups and what not.
So, I'm asking you. What's your favorite actionscript editor (outside of Flash), and what features does it provide?
The only really neat thing about FAME is that it lets me compile SWFs from ActionScript 2.0 outside of Flash.