This thread on the same topic might also be helpful:
Home gym help requested
No matter what program your wife begins, the basic equipment remains the same. She can choose exercises that match her willingness to work with the equipment, even choosing mostly bodyweight movements if that's what suits her best. She'll still use the bench and power rack for support for bodyweight movements. She might also get started with a program like NR4W and decide she feels totally empowered and start to love the Olympic bar. It's happening to a whole bunch of women!