glad to help.....there is a demo available, and if you happen to use cakewalk stuff, you might be able to get a discount on it...a light version of ReValver comes with Sonar, and perhaps with some other Cakewalk sequencers.
if you are planning to use the preamps alone, you might find ReValver a little tricky in that there are certain rules you have to use in building a 'rig'...for example you have to have certain items in the chain...however, if you click on any device you can bypass it, so that it will leave your sound unaffected....e.g., if ReValver forces you to use a power amp after a preamp, you can bypass the power amp, so that it's like it's not there.....