NYCHitman1
Gun for Hire
+1
If you can afford it go with an i5. Here is a solid setup from Newegg.
Newegg.com - Intel Core i5-750 Lynnfield 2.66GHz 8MB L3 Cache LGA 1156 95W Quad-Core Processor BX80605I5750
Newegg.com - GIGABYTE GA-P55-USB3 LGA 1156 Intel P55 USB 3.0 ATX Intel Motherboard
Newegg.com - G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL8D-4GBRM
Newegg.com - MSI R5770 Hawk Radeon HD 5770 1GB 128-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card
Newegg.com - CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply
I'm assuming you can use your current case, HD, and DVD drive. I put a PSU in there because you really want to make sure you have a solid PSU or will have soooooo many headaches. Never skimp on the PSU! I really like Corsair. I've also used G.Skill RAM in many of my overclocked rigs with great results. Gigabyte makes great motherboards in my opinion.
All of this would cost $696 delivered to my door. If you need a case and a 1TB HD you are probably looking at another $175-$200. So about $900 total.
Hope this helps the OP!
I literally gave him the same exact set up a few days ago that you just posted with exception to the gfx card since I'm a Nvidia fanboy
I have that psu as well. Lots of connections but creates a wee bit of clutter inside Mid-ATX cases.