For SL, get the Fischer WC SL. It's the single most fun ski I've ever rode, it just RIPS.
For GS, get the Salomon Equipe 10 2V. Atomics are, to me, too unresponsive for anything but the highest speed courses. On a holy shit fast course, they'll rip, but I've found on most less-than-pro-level courses, the Salomons will perform a lot better.
Eric Peterson
Freeski Specialist
Tyrol Ski and Sports
Rochester, MN