Well as far as Oil filters go, yes it does matter. Buy a Genuine OEM Honda filter, because it comes with the little aluminum crush washer for your oil drain plug(keeps you from having to torque drain plug down) And they say the Honda filters are made better anyway....

As far as plugs, I'd stick with NGK's. Maybe pick up a set of their platinum plugs if you're looking to spend a couple extra bucks a plug. Everyone has an opinion on this, and you'll probably have alot of people tell you not to waste your money on the platinums. Well I have them in my car, and I couldnt be happier!