I personally use Logic's built-in EVOC vocoder for a lot of my productions. Granted, it does take a bit of work to get the desired sound out of it, but I've not yet found a single vocoder, software or hardware, that doesn't!
(, Thu 15 Jan 2009, 0:12, Reply)
(, Thu 15 Jan 2009, 1:21, Reply)
Free VST, easy to use and sounds great.
(, Thu 15 Jan 2009, 11:28, Reply)