Depends on your experience. But if you can go nice and slow, and if you have the proper non-tapered screwdrivers and a mallet with rubber on one side and plastic on another, give it a go.
The rebound spring is going to be a bit tricky if you've never done it before. Safety glasses also are highly recommended. As you ease the slide housing up just use your thumb to stop the spring or it can flip out beyond time and space and you'll never see it again. You also have to watch putting the new spring in, as sometimes they can go zinging off. As long as you can retain the springs, everything should work out great.
When you replace the side plate, just be sure you carefully position it. When it looks exactly correct, just tap it a bit with the rubber side of your mallet. Don't use one of those big rubber mallets, but a small mallet with rubber/plastic as described. The side plate should ease right on down. Don't overtighten the screws and don't engage the action unless you have the screws in, as the vibration may cause the plate to pop out on you.
It's very easy to do. If you live near a gun store, just take your tools and ask if they'll let you do the change there. That way if you run into trouble, you'll probably have at least one person who can help you out. But no, it's not difficult. Once you do one, you'll be able to do another one in your sleep.
, some nice wood grips, and maybe a spring change to the Wolff Power Rib mainspring and reduced power rebound spring. Can I change these springs myself or do I need a smith to do this? 
