Lately I have been on lookout for a gaming computer, this because there are lots of games I really want to play but my laptop I have now is not strong enough.
I have decided that it shall be a stationary, not a laptop. A gaming laptop cost about 2-3 times more than a stationary and you can't upgrade a laptop. Like change graphic card etc.
Before we look into which Computer we want, lets first look at its accessories
Furniture- A good computer desk
Gaming Chair-One which you sit comfortable in when playing games for hours.
Monitor(screen) A good and decent one 23-24 inches.
A good gaming mouse
A good gaming keyboard.
Its purpose is to run games, therefore I need some more gaming accessories, such as
A decent joystick
A decent steering wheel and pedal
Now we have all the accessories so lets take a look at the computer(tower)
It must have at least 6 gb VRAM and 6-8 gb RAM.
Furthermore the cpu must be between 2.5-3 GHz.
To be honest I really don't have so much knowledge when it comes to computer, only what I want or need.
and most important I do not have the money

Markus
Edit
The CPU must have more than 4 GHz