I should mention, there are remote extending products out there if you're not able to put a hole in your cabinet where the remote receiver is. I looked into this option, but it was a bit pricey, so I chose to yank the receiver and extend the wiring so I could place the receiver anywhere I wished.
The extender are basically a new remote receiver, and a transmitter that plugs into it. The transmitter gets mounted over or near your tv infrared remote receiver. The new remote receiver just send a signal through that transmitter to your tv.
Ive read that others have hacked their remote, soldering a new button to the remote power button, and then placing the remote inside the cab where the tv can pick it up. But then you have issues with volume, menu controls, etc that may be a concern. Granted you can mount buttons outside your cab and solderm them to all of these controls if that strikes your fancy.
On mine I just prefer to use the remote control instead. But I am using various inputs since my arcade cabinet also houses a satellite receiver, dvd player and ps2.