@shrewd - for beginners liquid pairs like eurusd, gbpusd are good to begin with before moving to the others since they offer many trading opportunities. Exotic pairs should come later since their spreads are quite wide as well as rollover charges and can be very volatile during illiquid periods. Not recommended for a small account.
As you gain confidence you'll meet gbpjpy aka gebby aka the beast. Trading this cross is quite profitable and also can fry your account in the same breath! This cross tends to move by many pips. During volatile periods avoid it as a learner if you haven't learnt how to ride the beast.
Also different market sessions move currencies differently. Asia moves asia zone currencies the most, europe moves eurozone currencies the most and US moves the USD, CAD and latin america currencies the most. Eventually you'll have to pick a market that best suits you. Geo location will also determine the market as per timezone.
I've never used copy trading so I cant discuss it.
$15/barrel oil... The commodities lehman moment arrives as well as Sovereign debt volcano!