18-55 with 50mm f1.8 or 18-105 ??

i got my d7000 with 35mm f1.8 upgrading from the d40x , now i sold the d40x with it's lens the 18-55 II and now i'm searching for another standrad zoom lens so i thought i might getting the 18-105 , then i thought that i might get with the same price the 18-55 VR with the 50mm f1.8 D .. so what do you think i need your advice ?

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