Working out? P90x? other alternatives?

The wife and I got P90X late last year because we are gonna get in shape. It has a preliminary workout that's kinda a precoursor to what's to come.....in other words........if you can't do that, you sure as HELL can't do the P90X program. We've decided that the preliminary workout is all we're gonna do.....cause all we wanna do is lose weight and get toned up......not ripped *** all up. The preliminary workout ain't no slouch.....course I'm disabled and older than I used to be too. We actually had to work up to doing that but we can do it all the way through now.