Inverted triangle shape

Girl_Bomb

Thanks to a resent post I have finally found a proper way to describe my football player like body type, my big shoulders little hips.
After doing some research I came across an article on how to exsersize for an inverted triangle shape

"http://voices.yahoo.com/how-work-out-if-inverted-triangle-body-11205362.html?cat=50"

"Avoid upper-body exercises with heavyweight resistance. In order to trim the upper body particularly the shoulders, it is important to minimize excessive muscle gain on the area. Thus, using lightweight resistance is essential. Do it with high repetitions on each set. In this way, you can keep your shoulders toned and shapely, but not too bulky."

I'm in need of some suggestions, advice or examples on how and what to do for my upper body, thanks!!!!
(I can bicep curl 25lb dumbells so when it says lightweight I'm not sure how much to lift)