My 2 Ele Shamans do around 1700 to 1800, in heroics, 2100 to 2200 generally on the lower side, in 10/25 man naxx.

My boomkin, 1 button spam castrandom, does around 2300 to 2700 dps on heroic bosses and for his pretty weak gear hes does near 3K in 10/25 naxx