I'm in decent shape but seem to have a hard time--harder than most women my age (20)--building muscle and making strength gains. I started really lifting (beyond the light dumbbells Shape Magazine was telling me to lift) about a year ago, and even though I'm proud of my progress, it isn't as much as I would like. I'm looking into getting the cheapest CrossFit membership available, which would mean going about once a week. Beyond that, does anyone have any suggestions for a strength training program I should follow? I've recently found Simple Fit and may try doing that, but I'd appreciate any other suggestions. Or, any female-specific tips for getting stronger? I should mention that at present I'm trying to lower my BF% a bit as well, so that may complicate things. Thanks!