Help with a computer build under $450?

[Zeurth]

Approximate Purchase Date: Two days.

Budget Range: $300-$450 after shipping.

System Usage from Most to Least Important: I'll be using it to run LoL.

Are you buying a monitor: Yes

Do you need to buy OS: Yes

Preferred Website(s) for Parts: Doesn't matter.

Location: Las Vegas, Nevada.

Parts Preferences: As long as it runs fine and is upgradable, fine by me.

Overclocking: No clue of the difference.

SLI or Crossfire: Again, no clue.

Your Monitor Resolution: Hoping for 1600x1200 or above.

And Most Importantly, Why Are You Upgrading: I've been using laptops and getting one that runs with at least 40 fps with maybe dropping off until 30 is impossible for me, so I'll try a desktop build and see what I get.

Please and thank you for any possible help and/or advice given.

 

[sadams04]

OS = Yes and Monitor = Yes. That is around $200 of your budget and that is at 1920x1080. You will need to increase that budget a bit...

 

[Danbuscus25]

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: AMD A10-6790K 4.0GHz Quad-Core Processor ($124.98 @ OutletPC)
Motherboard: Gigabyte GA-F2A55M-HD2 Micro ATX FM2 Motherboard ($44.99 @ Micro Center)
Memory: G.Skill Ripjaws X Series 4GB (1 x 4GB) DDR3-1866 Memory ($42.99 @ Newegg)
Storage: Western Digital RE3 250GB 3.5" 7200RPM Internal Hard Drive ($36.00 @ Amazon)
Case: Sentey CS1-1398 PLUS ATX Mid Tower Case ($19.00 @ Newegg)
Power Supply: Corsair Builder 430W 80+ Bronze Certified ATX Power Supply ($24.99 @ Newegg)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer ($14.99 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($89.98 @ OutletPC)
Monitor: AOC E943FWSK 60Hz 18.5" Monitor ($64.26 @ Amazon)
Total: $462.18
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-05-06 10:45 EDT-0400)

this is the lowest i could go, and there is no way to get a 1080p monitor in here.

 

[Zeurth]

I guess I'll have to go for a laptop for now then, I'm building a 2k-3k build later on but yeah, for now laptop it is.
Thanks anyways.