Gym workout routines for women trying to lose weight and tone muscles.?

[littlemisscontroverse]

I recently joined the gym at my college, but I am a beginner to the whole gym thing so I really don't know what to do.

I know I need to work abs and do the treadmill/bike thing everyday (I know there are other machines for this part i.e. the rowing machine etc... but I haven't tried them yet.

But anyway, what is a good routine as far as arms and legs, butt, thighs etc...and I know do lots of reps low weights but what equipment should I be using or what exercises if I'm using the free weights etc... I am going to be going Tuesday, wednesday and thursday possibly Friday but the rest of the time I have access to an exercise bike, free weights etc...

So basically I am looking for good routines