squeekey front brakes

[Jccck]

Either the compound of the pads you are using are fairly average or the disc is warped & requires machining or replacement.

Also check to make sure your caliper pistons & slide's are not seized & that the slides are lubricated correctly

If the discs were warped you'd feel it under heavy pedal use, but it won't cause squeeking.
Cheap pads will glaze easier and you're doomed to annoying noises.
If the Pistons were siezed, the brakes wouldn't work at all.
Siezed slides can be checked easily.. Make sure the pads (inner and outer) are waring around the same amount.. If not, check/regrease the slides (This isn't the cause of your problems, it's just good maintainence since you'll be pulling it apart anyways)

The disc may need to be deglazed.

This.

Put the new pads in, tell your wife to stop riding or using the brake like it's a fragile system.
Brake late, brake hard (Obviously within reason, we don't want warpage!) and your brakes will be brilliant day in day out.