Not exactly instructional, but useful:
http://media.crossfit.com/cf-video/C...dliftIntro.wmv
Note the bar over mid foot, shin close to bar, chest up, shoulders forward, scapulae over bar-- then during the lift, it is through the heels and the hips and shoulders move together until the bar is above the knee.
I'm going to disagree with Blarg a little bit about this lift thickening your waist. You aren't going to gain muscle while dropping 20 pounds. Your waist size will shrink whether you deadlift or not. Worthwhile to at least learn how to deadlift and to gradually work towards finding out what is heavy for you.
Also, as far as rep ranges go. I don't think bodybuilders lift much if any in the range <6 reps, and they tend to accumulate a lot of fatigue by numerous sets of several exercises for each targeted muscle. This is nothing like strength work-- much of the gains from which are due your brain learning to leverage what you have-- not from growing more muscle. To add at lot of muscle as a woman you'd need to be rarely genetically gifted and/or on roids and eating to encourage that accumulation. It's particularly common for women (a bit less so with men) to needlessly fear something that won't happen, bulking-- they'd be so much better off firing a worry synapse on that whole chocolate donut issue thing.
Good luck. Have fun-- if you can figure out how to have fun maybe you won't fall in and out of shape.