Sunny
Go to your local bike store, tell them EXACTLY what you're looking for, don't mention price, take a few for a ride, close to your price range and see if they are willing to haggle, if not, you know what bike you like and you can get it on the internet.
I used to sell bikes a long time ago, and even though you're a noob, you still know what you want. And I can guarantee you, spending less on a bike will cost you more in the long run.
A $200.00 bike is going to be a heavy mother, bad components (I'm talking about a new bike here, not a used or closeout 200.00 bike).
Just try a few, it's free to test and if they get pushy, leave. You owe them nothing.