I have a budget 0f 200$ and I would like to get a 1080p monitor and a Gaming Keyboard and mouse. What would be the best stuff I could get?
Your budget is just a bit limited.... The lowest cost 1080P I've managed to find was a 22" Acer for $135CAD.
To get gaming peripherals, it's unlikely that'd be enough. You could get a Logitech G100S on sale maybe, and if you're lucky the same with a Coolermaster Mech. Otherwise, you'd be stuck getting a rubber-membrane gaming kb, and those really aren't any more impressive than a regular KB.
ALso, if you are not getting a mechanical keyboard, don;t spend over $30 on one as they all feel EXACTLY the same. A $100 non-mech gaming board will have EXACTLY the same guts as a $9.99 Walmart board and they will feel identical.