Or... you could slide the keyboard to the right, so the G and H key are centered on the monitor:
Show Image
(http://geekhack.org/attachment.php?attachmentid=7150&stc=1&d=1262973209)
But then you gotta me careful not to smash the righthand monitor on your 3 monitor setup with your mouse when you do some rapid mouse gesturing..
:P
Yeah you could do that too. The GH should be centered on the monitor, which should line up with your belly button. But, with some keyboard trays that results in the mouse falling off the edge.. (like on my wife's setup, and the keyboard trays at work). My desk also had a strange angle in on the right side making my mouse bump the angle if it's too far to the right.