I need help

For $700 you can build a better one yourself.... is that an option?

If not, try going on CP and customizing one straight from there. However, i would warn against using their PSU's (which are labeled "Xtremegear"). they are terrible and can fry your whole system...

do you want a AMD procesor or a Intel procesor?

what games are you going to play? [ or what are you using]

how much is your budget?

EDIT: do you have a microcenter near?

I say $700 only because the computer was $570 and the graphics card he wanted to add was another $120.

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-2500K 3.3GHz Quad-Core Processor ($169.99 @ Microcenter)
Motherboard: ASRock Z68 Extreme3 Gen3 ATX LGA1155 Motherboard ($129.86 @ Newegg)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory ($46.99 @ Newegg)
Hard Drive: Samsung Spinpoint F3 500GB 3.5" 7200RPM Internal Hard Drive ($79.99 @ Newegg)
Video Card: Sapphire Radeon HD 7770 1GB Video Card ($119.99 @ Newegg)
Case: Rosewill RANGER ATX Mid Tower Case ($64.98 @ Newegg)
Power Supply: Corsair 500W ATX12V Power Supply ($41.98 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($24.97 @ Newegg)
Total: $678.75
(Prices include shipping and discounts when available.)
(Generated by PCPartPicker 2012-05-09 13:06 EDT-0400)

well this is my setup, i am still learning but what do you think? is only 10 dollars more than your normal budget.

EDIT: if you do have a microcenter near them go ahead and pick it up. if not than buy it off ncix or amazon [ pretty trusted website ]

Keep in mind he linked Newegg Canada - we don't have Microcentre here. And parts have a 10-20% premium, so $700 isn't much.

Tell me about it. I just paid a $240 tax on my $1800 build. They said HST will cancel off with government benefits...I say yeah right.