What website can I find laptops under $200?
Just go here: http://www.laptopsunder.net/
There are different sites that you can buy laptops for 200 dollars or less. They include http://wizzley.com/laptops-under-200/ and http://www.moneysavingexpert.com/deals/cheap-netbook-deals. These sites will help you get good laptops for the amount you want.
Craigslist eBay amazon
I don't have a website for you unfortunately, but I want to say that you might not get a good one if its first hand. You could get a second hand and a good model and stuff for less than 200 dollars.
eBay or quibids