Upgrading my graphics card?

[Brosive]

Well this is an OEM case so you should be careful with some things. Some years back HP would ship computers with some custom longer power supplies but I don't think dell or anyone does that anymore. The PSU is 460W which might be ok. Also the system must be very new right? It has Windows 8 and new gen graphics cards.

Edit: Nah, the 7570 is very low-end gpu so it must draw way less power. Yes if I were you I would go for a bigger power supply too. 550-600W should be just fine for even a 680.

Edit 2: Also depending on how well ventilated your system is you should choose between a blower or a oper-air style graphics card. If your system is not well ventilated go for a blower which exhausts the air from the back. Open-air are non-reference cards, maybe preoverclocked, with better cooling, more quite etc (usually)...

Reference(blower):

Spoiler below!

Custom(open-air) <-- prefer this unless the case is badly ventilated:

Spoiler below!

I actually already bought a new case:
http://www.newegg.com/Product/Product.as...6811119227

and this is the graphics card that I am getting:
http://www.newegg.com/Product/Product.as...6814130825

and is this a good enough power supply:
http://www.newegg.com/Product/Product.as...6817139028

Also, would I need more fans to cool my system? If so, how many and what type?