choosing locale for immersion study

ok, so I am planning a 2-6 yr stay beginning about 2008, and I am looking for a little advice/feedback on where to go.

There are however a few factors of varying importance that will help me weigh my final decision.

1.) LOCATION- I want to study in the north. Clearer accents, taller women, we all have are reasons.. here are a few locales: Beijing, Dalian, Harbin, Qingdao, somewhere in Jilin.

2.) EDUCATION- I work now up until the time I'll be moving, so money isnt really a concern as far as that goes. I'm a lower intermediate now (2006) and expect to have made quite an advance by 2008, so i want a challenging program to say the least. The one that has caught my eye the most CET Harbin.

3.) OTHER LANGUAGE EXPOSURE- I am interested in learning Korean as well, so I would love to be in a place that had a rediculously high population of Koreans. Other ancillary languages would include Japanese and Russian, but Korean is my top "other" language pick,

4.) STIMULATION- the place must be somewhat exciting as to avoid clinical depression.

Any ideas? Much appreciated as always.

Guilin university of Electronic and Technology is nice!
And Guilin is a wonderful city.
Few Korean students but lots of Vietnamese...

:) Beijing ~ Beijing is the best choice.