First thing to do is to not fall for the red herring. The red herring in this case being the argument that with all the miles it takes to get to your wall outlet, blah, blah, blah.
At first blush and without giving it a second thought it sounds plausible. It's what you use to get that power from the outlet to your amp that's important.
Power isn't being delivered to your abode with the intent of giving your amp a break. It's not a finished product yet. PCs that come with your gear just meet the requirements of not catching fire or melting. Great for power tools but not for audio (though I've seen what long lengths can do with power tools).
You don't have to spend a fortune to get great results and to hear a difference. If you set your goal on nothing over $200 you'd be surprised.
As others have said, read up on other threads and get a feeling for PCs and what they can do. Now, back to doing my Sunday thing: nothing really.
All the best,
Nonoise