Straight,is my catch-phrase for the swing. Stand upright and keep the clubface closed on the backswing;the clubface will be pointing skyward at the top of the backswing.
See how erect Colin Montgomerie is standing:
http://www.flickr.com/photos/mandj98/367290198/
The main thing I find about this tall stance is that it helps eliminate the hooks. If a person slices the ball,the upright stance may not be good for them. It is also easier on my back.
Played in a golf tournament this weekend and shot 78 and 77. I had some misses to the right and they got my in trouble,but overall I was pleased with my play.
One of the guys I played with was about 5'5" and 140 pounds,but he pounded the ball. The main thing I noticed about his swing was how he "posted" up on his lead leg at impact (straight lead leg like Tiger does.)
I will definitely be trying to post-up on my lead during my next practice session.