A free to download convolution reverb plugin. The Impulse Responses (IRs) sold as a bundle aren't particularly useful for voice design, but the plugin can load external IRs.
Some free IRs can be found here: http://www.joshuacasper.com/max-4-live-tutorials/convolution-reverb-impulse-responses/
"Altiverb 7 is the industry standard convolution reverb plug-in for Mac OS X and Windows. It features top quality samples of real spaces to create reverb, ranging from Sydney Opera House to the cockpit of a Jumbo Jet. Altiverb 7 is efficient on the cpu, offers many parameters to tweak the reverb, it is total recall automatable, and it has 64 bit support."
"A suite of three ingenious processors using pioneering technology developed during the last decades by the sound analysis/synthesis team at IRCAM, with innovative signal transformation algorithms for altering sound characteristics such as; pitch, spectral timbre and duration to manipulate properties of a voice such as gender, age and breath."
"The AVOX bundle combines 11 of our professional vocal processing plug-ins, to let you create stunning vocal tracks in any musical style, and design unique effects for audio post-production. From harmony creation and microphone modeling, to subtle warmth and doubling, to extreme vocal effects, AVOX is an essential toolkit for vocal and audio production."