If I we're you, I'd be leaving mining alone, it's alright cash but it is completely outshined by many different PvMing methods. For the time being, concentrate hard on 80+ dungeoneering (if your dedicated and you know what your doing, it shouldn't take more than a couple of days).
Once you hit 80+, pick a chaotic that's right for you account (whether it's a chaotic crossbow or a rapier) and start training your account/making cash with PvMing. Aside from staking, dicing, ect.. PvMing is the best cash in the game, and I highly suggest you try it out.
If you'd like a partner to do a couple of bosses (I'm always down for armadyl, bandos, daggonoth kings, revenants, corporeal beast, kbd) add my msn,
[email protected] ^_^