KingCobra, I hope you are still reading. We're not getting much input. I guess slide shows are old hat.
just finished putting in 9 different sound tracks for background music into my now 250 image slide show. Tried the narration track and it works very well. If you want to change it, you've gotta delete it and start over, but the back ground music is independant and unaffaected by the narration channel. Main thing I discovered is it's best to finish the show then make up a script so you can have names, places in front of you as the images roll by for the narration channel.
You can either burn a DVD, VCD, SVCD, or simply burn to HD. The burn to HD creates an iso which contains the standard DVD file setup. This is good because it means you can burn a number of iso's to hd and then later, at your leisure, use Nero, or whatever to burn the DVD disks. I've been burning to DVD-RW to test all this stuff.
Easy Media Creator Suite 7 is a fine program for this purpose. My only criticism so far is that editing background tracks is far from intuitive. I don't like reading instuctions and have lost some time on account of that.