The Realforce 87U (and others I assume) have a nice feature where you can swap the roles of the Caps Lock and left Control keys. It even has a LED under left Control, and a replacement keycap with a semi-clear dot for the LED to shine through.
Mine came with the keys swapped, but I remap my keys using KeyTweak, so I don't need that done. I reset the DIP switch and carried on. I thought I should swap out the keycaps too, but then decided not to. You can see the blue light under the keys just fine.
In fact the Num Lock was annoyingly bright when it came on, so I replaced that cap with the spare (black) Esc key. I like it much better this way.
