Gaming system to play aion 400-600 dollars help, please!

I need to build a rig for 400-600 dollars and want to play Aion at max settings. Can anyone please suggest a rig the lower the better, as long as it can play Aion at max. Also, I would LIKE to have a new:

Monitor, mouse, and keyboard. I have these things but they are getting pretty old.

If this really can't be done at under 600 bucks with the monitor, mouse, and keyboard then that's fine. But if it can while running Aion at max settings..then that would be better.

Thanks!!

Edit:

APPROXIMATE PURCHASE DATE: September 10-September 20th

BUDGET RANGE: 400-600 USD


SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: Gaming

PARTS NOT REQUIRED: (examples: keyboard, mouse, monitor, speakers, OS) Need a monitor, mouse, keyboard and an entire new rig. No OS or speakers needed...

PREFERRED WEBSITE(S) FOR PARTS: Newegg.com, but if I could get these parts from frys it would be better since its nearby from my place

PARTS PREFERENCES: Whatever is better price/ratio performance

OVERCLOCKING: No.

MONITOR RESOLUTION: None preferred

ADDITIONAL COMMENTS: I need it to run Aion at max speed Thanks.

your screen resolution? probably 1900X1200?
Processor + mother board:
# AMD Phenom II X3 720 2.8GHz Socket AM3 95W Triple-Core Black Processor Model HDZ720WFGIBOX - Retail
# 242570ECS A780GM-M3 AM2+/AM3 AMD 780G Micro ATX AMD Motherboard - Retail
$ 164 -15 MIR
Western Digital Caviar Blue WD3200AAJS 320GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM free shipping $50
Cool master storm scout + Power supply combo cool master 600 wats $140
dvd/cdburner about 50
4 gig ddr2 ram probably 60
heard a 4850 will be enough for Aion, im getting a 4870 for aion though, 130 ish
Microsoft keyboard Sidewinder X6 50 at amazon
Monitor probably the asus ones at 150
gaming mouse i like the death adder or cyber snipa at 40-50 $
all this is without tax so its like 50 more lol

its all gonna be like 850 man, this is just a suggestion.

let me do this again, cheaper way, antec 300 case with antec power supply for 100
amd phenom II 720 + mobo for 164
harddrive 320 GB for 50
DVD burner for 30
4 gig ram for 60
AMD 4850 for 125
longitech non gaming keyboard for 25
mouse, Microsoft Intelli? 10 bucks
Monitor 120 ish

comes out about 685 ish but you gotta consider tax which comes to over 720
which is not bad considering you got the monitor in it.

nice build why me but man is that monitor hideous lol, try to paint it black if you decide to get it.

Why_Me's build is good, and keeps you under budget, but the LGA 775 socket is dead and leaves no upgrade path. Since you have a monitor, save up and get a decent one when you can. Maybe Christmas? Anyway, here's my recommendation. Its AMD, DDR3/AM3. Will leave a bit more flexibility for future upgrades.

Antec Sonata III 500 Black 0.8mm cold rolled steel ATX Mid Tower Computer Case 500W Power Supply - Retail http://www.newegg.com/Product/Prod [...] 6811129024
As jtt283 said, its a shell shocker deal, will need to jump on it quick.

SAMSUNG Spinpoint F3 HD502HJ 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM
http://www.newegg.com/Product/Prod [...] 6822152181

SAPPHIRE 100245HDMI Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail
http://www.newegg.com/Product/Prod [...] 6814102824

G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL7D-4GBRH - Retail
http://www.newegg.com/Product/Prod [...] 6820231276

AMD Phenom II X3 720 2.8GHz Socket AM3 95W Triple-Core Black Processor Model HDZ720WFGIBOX - Retail
ASUS M4A79XTD EVO AM3 AMD 790X ATX AMD Motherboard - Retail
http://www.newegg.com/Product/Comb [...] mbo.258156

$554.82 shipped. Leaves you roughly $50 for a new keyboard and mouse.

You could also swap out the mob and memory for DDR2 for $504.51 leaving you almost enough room for that 19" monitor.

AMD Phenom II X3 720 2.8GHz Socket AM3 95W Triple-Core Black Processor Model HDZ720WFGIBOX - Retail
ASUS M4A77TD Pro AM3 AMD 770 ATX AMD Motherboard - Retail
http://www.newegg.com/Product/Comb [...] mbo.254081

G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model F2-8500CL5D-4GBPK - Retail
http://www.newegg.com/Product/Prod [...] 6820231166