Incheon is the soon to be the second largest city in South Korea, expected to surpass Busan by 2012. It is seved by train, subway, and buses, and the relatively new (2002) Seoul Incheon International Airport|Incheon International Airport]].
From the Incheon Travel Guide
Average cheapest prices by month for budget accommodation in Incheon
Before you even arrive to the guest house, the manager of the guest house picks you up from the Geomam station free of charge. The station is about a ten minute walk from the guest house, so it isn't far at all but the free pick up is convenient when one has luggage to carry. ... more
South Korea - Incheon
to work, any vaccinations needed before i leave etc etc. At the moment im intrested in working in Incheon ...
Ferry Boat from Seoul to Beijing
Try doing a Google for "korea china ferry" or "weidong ferry". The ferries go from Incheon to Tianjin (Beijing isn't a port). ...
Money exchange (In Seoul)
Incheon Airport's lower level has several very good exchange facilities. If you plan on later using an ATM, just be aware that Korean ATM's only have a numeric keyboard. ...