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Most companies now make at least one ski that fits your needs. For a do it all EC ski, I'd look at stuff around 100 underfoot. Its all personal preference, I prefer a slightly wider ski for everything, but then again for what you want to do, most people would want something ~100 underfoot.
Skis around 100 Underfoot
Rossignol Scimitar Open
K2 Kung Fujas
K2 Shredittor 102 (come out for the 2013/2014 season and replaces the Kung Fujas)
Dynastar 6th Sense Silencer
Surface One Time