Bidirectional?
There's been a tonne of threads asking a similar question, basically you've got two choices something ~100 for better hard snow performance of ~110 for better soft snow performance.
Skis around 100 Underfoot
Rossignol Scimitar Open
Rossignol Scimitar
Line Blend
ON3P Jeronimo
Moment PB&J
K2 Kung Fujas
K2 Shredittor 102 (come out for the 2013/2014 season and replaces the Kung Fujas)
Volkl Bridge
Dynastar 6th Sense Silencer
Line Chronic
Surface One Time
RMU Diam
Faction Prodigy
Praxis Piste Jib
4FRNT Cody
Skis around 110 Underfoot
Line Sir Francis Bacon
Atomic Blog
Salomon Rocker2 108
Rossignol Sickle Open
Moment Deathwish
ON3P Jefferey
K2 Shredittor 112 (comes out for the 2013/2014 season)
Icelantic Nomad (camber of RKR depending on you preference)
4FRNT Devastator
Batalla AllMtn Twins
There's a huge difference between many of these skis, so I advise you go and do some research into the profiles, flex etc. of each ski and see which one suits you needs and budget best. Not only is recommending a pair of skis for someone off a few lines of text difficult, but you will also find it to be a beneficial exercise, which will help you to make decisions on 'what ski?' in the future.