help needed with mixing (numasrk cd1 decks)

I have been trying to produce my own trance tunes using reason and cubase and today just bought a numark cd mix 1 for £150.
I've never used vinyl decks before and I know most people tell you to start with vinyl but I have that much on cd's that I couldn't be f**ked shelling out for records.
I am saving up for a half decent set of citronic decks or something about £600 but I got a second half all in one numark cd mix 1 today.
Has anyone got any basic tips for mixing?