I just posted a very similar thread. I don't think anyone wants to have to skill up weapons as well. I think they could have a similar system however. Maybe your weapon can just automatically be capped in a sense. Do not add weapon skill levels, but just the ranking system: A+, A-, B+, B-, etc.

The reason I'd like a system like that is I'd like to be able to use more than just ONE weapon on the same class. Let me use a kick ass sword on more than JUST GLA. I'm glad to see other player's thinking about it as well!