I am in the market to purchase some new editing software. I want to be able to mix two different videos into one, especially the audio portions. I have some old VHS videos of a band I used to play with. Both videos are about 20 years old and have deteriorated some. First I want to clean them up as much as possible. I probably can't do much with the video portion, but I understand that audio can be cleaned up some. Second I want to be able to combine the audio from the two different videos. One of the videos has good vocal audio and terrible instrumental audio, and the other video has good instrument audio and bad vocal audio. I think matching up the two will be a challenge. One problem I see is that these concert video's were recorded on different nights, so most likely the tempo is slightly different. Considering that the pitch and speed could be slightly different between the two videos, I need editing software with the ability to correct this so everything matches up perfectly. A slight bit of audio tweeking, if you will. Any suggestions? I've just started researching editing software. There are a bunch to choose from, Pinnacle Studio 11, Vegas, Adobe, and a host of others. Does anyone have any personal knowledge of any of these or any other software that will do what I need it to do? Thanks.