Hey OP,
I'm currently in Korea, living on the economy, wife is stationed at Camp Stanley.
When you first come over, they will put you through a housing briefing.
You will find a realtor that speaks English. Mine is Jenna Goog, and she's a single cutey, speaks the Engrish like a champ.
Her phone number is 010 3442-3677.
They take you around and show you different high rise apartments. Most are in the 3-5 bedroom range, well within your allowance.
Converters come with the apartment. We live on the 15th floor and we got a fully furnished (bare bones, bed, sofa, dining table) apartment. Like I said, converters came with the apartment, more than we actually needed.
To get to work, you'll need to jump on the hwy situated near the apartments and head about 10 minutes toward Dongduchun.
You will follow the highway until it ends. You'll know it's ended when you see red markers on the highway indicating that it is narrowing to one lane.
Exit highway and turn right. Follow the road *twists, turns, etc* until you come to a dead end three way intersection. Directly ahead of you - Camp Casey.
Buses:
Airport Limo bus goes to and from the airport from the front of Casey.
Taxi/bus/train
T-Money card, buy one at the station or at a convenience store. You can charge these up at convenience stores with cash only.
Join "Military Families in Yangju" on Facebook for more immediate needs like apartment help, local directions, camp casey happenings. Beware, they are humorless and mostly dependa wives, and the group doesn't enjoy joking around. Very serious bunch.
Let's see - Koreans drive like maniacs, they're all about the me-me-me - not very gracious on the roads. They run red lights like it's nothing. So be careful out there. There are speed cameras on the highways, sometimes they put them up overnight and you get caught - when you do, you'll get a ticket to your APO address. Pay it and move on - 30 bucks.
Join "Failed parking and driving in South Korea" on facebook group for a good laugh - every single day - great pics and a stress reliever for sure.