Need help with a slight upgrade

[Rokzum]

Hello I am looking for help with a slight upgrade to my craptastic pc i am currently. What i think I need is a decent low profile video card to run diablo 3 decently and WoW. Doesn't have to be max settings, but I dont want to run in slow motion like i currently do =\ I'm currently using the innards of a HP slim, while my stepson has some Dell Inspiron. What I'd like to do is once my main PC is fixed give his DELL the video card I'm looking to buy. So let me link both computers so you know their specs And thanks for stopping by!

HP
http://reviews.cnet.com/desktops/hp-...-33698025.html

Dell
http://reviews.bestbuy.com/3545/2633...ws/reviews.htm

[Deleted]

The HP's PSU is just 220W. It's a gamble whether it'll survive adding a GPU. Something like this might do the trick, but there's a risk you fry out the system. And the performance will still be very poor. http://www.newegg.com/Product/Produc...82E16814150567

[Rokzum]

So do think also adding a power supply will help?

Heading to Best Buy today to look around. So may pick up a decent price power supply if that would help not fry the system haha

[Rokzum]

So a friend adivsed me not to buy from bestbuy and order from newegg instead. In the mean time, i was wondering if the motherboard from the HP could be placed in to my Alienware to be hooked up to my XFX Radeon HD 4850 and 750W Power supply