I'm using OS X Lion.
I'm a PC user and just recently tried out using a Mac. I'm used to installing a handy app in Windows named TouchCursor. It allows me not to release my fingers in the "home" keys of the keyboard, which helps increase productivity (IMHO) because I don't need to reach out for the arrow keys anymore.
In Vim, the standard for the left, right, up and down is the H, L, K, and J keys. I mimic it in Windows through TouchCursor by just adding the Spacebar (holding it down) + either H, L, K and J, depending on the direction I choose. I made it universal, not only using Vim, but used it every time I navigate Windows, work with MS Office and other apps.
Is KeyRemap4MacBook able to this just like I used to do it in TouchCursor? Currently I have downloaded it and would be experimenting and see how it goes. I just needed to post this question assuming someone might have experience solving this.