How to Make Shortcut for Switching Language?

[Woogear]

Hi,

I'm a Korean user.

Is there any solution for changing language with shift(L) + space key combination?

I tried to change 'Override Keyboard Subtype Registry', but this changes also another language(Chinese letter) shortcut automatically with ctrl(L) + space.

I don't want to let this happen, since I use this shortcut(ctrl+space) at Eclipse.

Usually, most Koreans switch language with 'right alt' key. (English - Korean)
It was not that bad, but recently I'm typing a lot of English words, and it's kind of annoying to change language very often.
Could you advise me how to make a shortcut as 'Shift + space' for changing language?