I would like to partly (but respectfully) disagree with that weight training assessment. Not completely, she has a good point, EXCEPT I have been weight training for years, and I can lift more weight than all the women I know and even a few of the men and I am in no way bulky (except the chub on my thighs, but that's definitely fat, not muscle).
Testosterone is what makes people (men and women) "bulky" and while doing 3 hours a day of weight training can increase a woman's testosterone level enough to allow her to achieve some degree of "bulk" it is not, in fact, the simple act of fatiguing your muscles with heavier weights and fewer reps that actually causes "bulking". You have to bring your muscles to failure (meaning you absolutely can't do another rep) in order to build muscle at all, whether you do it in 50 reps or 10.
Now, you should practice BOTH kinds of weight training, low weight/high rep, and high weight/low rep in order to achieve the most well rounded health & fitness benefits. They do work different aspects of the muscle fiber, but a little visible muscle makes women more sexy, not more manly. I'm not looking to turn out like a pro wrestler, those women almost all have to use some sort of testosterone enhancing "nutrients" (I'll call them that since there are a few natural and legal ways to do this still - although I'm not interested in that look myself).
It is just such a common misconception that using a weight heavy enough to fatigue your muscles in 8-12 reps will make a woman too bulky & I want to do my part to dispel that bit of supermodel propaganda. We don't all need to look like twigs, and building muscle, of both short and long fiber types (by alternating workouts at least weekly light/long and heavy/short) you can be functionally strong and build lots of metabolism boosting muscle. If you're a naturally high testosterone woman (no joke - a good way to tell is by body hair, is it thick & do you have a more than average amt. of hair on your upper lip? Everyone has some, but if it's outta control, then that's usually higher testosterone) and you tend to bulk up easily, you can offset the balance some toward the lighter/longer workouts - like 75%/25% but doing both makes you more functionally fit (useful muscle).
I'll get off my soapbox now. I feel very strongly about this though and I had to get that out. Now for my DVD recommendations: Killer Butt w/ Dolores Munoz (it IS a killer too, but my butt looks much better now, I swear!), Get Ripped w/ Jari Love (really good all-round weight training, and she's a skinny chick doing low rep weight lifting), and Gilad's Sculpt & Tone workout (he's a little cheesy, but it's great upper body work, a little weak on the low body so I pair it w/ Killer Butt in the same week). I also like some of Kathy Smith's weight training workouts. She's another scrawny weight lifting diva, but she's 50 and looks fantastic, so I'm sold!