Andrea,
I know you already ordered you Selle An-atomica saddle and I really hope it works out for you. I went through about 10-12 saddles in past 2.5 years and I think I finally found something really good. The last saddle I got is Specialized Avatar and its really comfortable. It supports you under your sit bones and doesnt give me any pressure issues in the front. No chaffing even without chamois butter or body glide which I always applied in enormous amounts before. I also had brooks before this saddle and used it on about 120 miles and it gave me pretty awful chaffing in the front soft tissue after about 16 miles. If you Selle An-atomica doesnt work out give Avatar a try, just measure your sit bones for a correct size. Last year I had Jett in 144 width and it was a little too narrow for me, so I ordered Avatar in 155 and its perfect.