What is the most current but non-trendy likely to be worth the money silhouette for pants and trousers? I'm thinking of a navy suit, since I have so much black.

Jacket style - longer, shorter, number of buttons, lapel?
Pants - trouser? leg style?

Here's what I'm eying:

http://www.jcrew.com/womens_ca...../60020.jsp

http://www.jcrew.com/browse/si.....8053992080

But are these going to hold out over time? Does anyone have better and somewhat affordable suggestions? Anna's Rag & Bone look was stunning, but a bit out of price range....