(trust me I didn't want to get a computer from staples for gaming or anything but we returned my old one and got a HUGE credit) so anyway I'll be playing World of Warcraft mostly and some Black Ops 2 when it comes out. I am looking to at minimum get ultra or max settings (not including shadows) for 1920x1080 for WoW and solid graphics for Black Ops 2. I want to upgrade the CPU and GPU as cheaply as possible so it reaches those points at the bare minimum. I realize WoW is CPU based mostly, but the new games coming out seem to be GPU based. I don't want to be spending much money upgrading these two things. Any ideas on what I can upgrade to for max settings?
You won't be playing at max settings, but if you want to, you are going to need a new power supply as well as a more powerful graphics card, which is going to set you back at least $200. The 7750 is the most powerful upgrade you can get with your current power supply, and will play all games, not at the highest settings, but will play them.
Not really. The fact that it doesn't have one means it's not powerful enough. Sadly, without upgrading the power supply, the most powerful card you can get is HD 7750. And with budget of $150 you cannot really upgrade both power supply and the graphics card.