Region unlocking a Saturn

Hey chums,

I currently have a work mate in the US and he has kindly offered to bring me back some loot. He's in Colorado atm and found me a cheap Sega Saturn.

My question is a) Is it possible to easily install these region unlocking carts? And b) do they actually work well. I'd obviously want to be able to play my PAL region games on an NTSC machine. C) is this a waste of time pipe dream?

Thanks duders

I've heard the Action Replay 4M Plus is the way to go, but have not tried one myself (I have a generic expansion cart for my Saturn and no import games to try out).

I found this: http://www.play-asia.com/action-replay-4m-auto-plus/13/701b2