Alrighty. Sweet man. Thank you very much.

So I have a problem I probably should have mentioned before. My PC in considerably smaller than normal pc's and has no room for a better power supply cause I feel like I'm gonna need a new one with all the new things I'm gonna need.

Can you tell us your case and PSU? Would also be worth knowing what mobo you have. Download Speccy and post a screenshot. Take the side panel off your case and you will find a sticker on the PSU stating it's make and model. Your case might have braning on it somewhere, go to the manufacturers page and match your case to one on their site, if you can and give us a link to the case.

Also, what are you looking to spend on upgrades, and what's your currency?

Well when I bought this pC I was only wanting it to be able to record videos and such, and now I want more out of it and it's an Acer Veriton Vx2631-UR10. I knew literally nothing about pc's at the time, and now that I've learned a few things I now know how big of a mistake I made.

PSU and case need upgraded. Again, would be useful to know the motherboard. Download Speccy and post a screenshot. Still need to know budget and currency to help.

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I'm only looking to spend about $150(USD) right now, but i plan on dumping what money i can into it, and buy parts as i can

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Would this Be worth getting? It's quad core and has more GHz than my Processer now

No. It's an APU and you'd need a new motherboard for it. You'd benefit from a new motherboard anyway, but you need a new PSU and case.

A little over budget;
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Save $150-$200 for an i5 or Xeon or something. If you're interested in overclocking, you can grab an unlocked i5/i7 and a cooler and OC on that motherboard.

Sweet man. Now I'm just gonna need to figure out the process of installing a new mobo.

a dedicated gpu will take some power away from your cpu but your processor is only a dual core so idk if it will be able to handle steaming seeing how streaming is a cpu hungry process you would be better off upgrading your cpu to i5 4690k or a i7 4790k depending whats in your budget

EDIT: after read though all the comments if you wanna stream i would recommend waiting a little and saving up until you can afford these upgrades

PCPartPicker part list: [ Register or Signin to view external links. ]
Price breakdown by merchant: [ Register or Signin to view external links. ]

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($224.29 @ Amazon)
Video Card: Asus Radeon HD 7770 2GB Video Card ($119.99 @ SuperBiiz)
Case: Corsair SPEC-01 RED ATX Mid Tower Case ($37.99 @ Micro Center)
Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($29.99 @ Micro Center)
Total: $412.26
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-03-27 15:34 EDT-0400

or this

PCPartPicker part list: [ Register or Signin to view external links. ]
Price breakdown by merchant: [ Register or Signin to view external links. ]

CPU: Intel Xeon E3-1230 V3 3.3GHz Quad-Core Processor ($243.95 @ SuperBiiz)
Video Card: Asus Radeon HD 7770 2GB Video Card ($119.99 @ SuperBiiz)
Case: Corsair SPEC-01 RED ATX Mid Tower Case ($37.99 @ Micro Center)
Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($29.99 @ Micro Center)
Total: $431.92
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-03-27 15:50 EDT-0400