Does it seem sufficient to you? Does it seem to say something that hasn't already been said and ignored by the NoKos? Does it represent progress?
As far as UN Resolutions go, this seems like a good one. I don't know if previous ones called on nations not to supply materials for weapons to NK, or whether to avoid buying their weapons technology.
We can't reasonable expect a much stronger resolution. The UN isn't going to authorize force to take out their missiles or nukes, and it's not going to put a complete embargo on trade with them, either.
But it did reinforce the concept of the six nation talks, not unilateral ones with the US. To that extent, both Russia and China are more pro-Bush than our own Democrats.