If you're planning to buy a common variant of airsoft (ie. M16/M4/AK styles), you can save a ton of money while you're down there.
Pick up a TM gun (for reliable internals), throw away the plastic body and bring everything else across. When you get here, pick up a metal body (I think Huang sells them) and you now have a reliable gun with a metal body for half the price.
You can find a dis-assembly guide here:
--or if you're not very dexterous--the airsoft shop you purchase from may do it for free if you let them keep the plastic body (Which they may use for repairs or other goodness).