You really need to play it (and I mean it really). For me it was the best game ever made, it's just perfect. It's not a FPS, you play the game in third person view. You said you had a GC and you didn't get it, When this game came out I though that I needed to buy a GC just for RE4.
You can wait for the new version that is coming for thw Wii, or if you're really that desperate you can buy it now for a low price.