What does it take?

[Vipershark]

Having ideas is cool and all, but everyone has ideas.
Unfortunately, ideas don't equal games.

You have to have a cohesive plan (it's possible to make a game without a plan, but that's a bad idea) and then the discipline to follow that plan and put it into practice. Learn to write Design Documents that plan out exactly how every facet of your game works and then stick to those documents, even on extremely simple games that you feel don't need them.

Start small, and once you have the basics, work from there.
You might want to make the world's biggest, best game someday, but assuming you even get to a point where you're able to create such a thing, it will take YEARS of work and practice and failures beforehand. Making games isn't easy, and you can't go into it thinking that you'll be able to create a masterpiece soon after you start.

Start off with something simple like a Pong clone, then work your way up through more advanced skills and techniques.

Of course, programming skills are necessary (unless you can get someone to program for you), as are art, music, etc. skills.
Personally, I recommend starting off with Game Maker as a starting point to get down simple concepts of how to put all of these things together into a small game since it allows you to quickly and easily make things.

I hope this post isn't too rambly, I'm kind of typing it quickly and I'll probably come back to edit it later