I have put together a parts list that does not include a PSU or case. I am hoping that you can reuse your case and your PSU (350 WATT mim.)
I chose Intels 2600K CPU because it has Hyper-Threading. That means it is a Quad core with 4 Virtual cores; 8 in all! It has an unlocked mulitiplier which means if at some point you need more power it can be OC'd to 4500 MHz. However you need to know that these parts (RAM, PSU and cooling HSFU for your CPU are meant for stock operation. If you OC they would have to be upgraded.)
I chose a Z68 M/BD because you can use a small SSD and large SATA HDD together and see at least double the speed of SATA HDD by it self. Some combinations are 4 times faster.
The graphics card is designed for the applications you will be using as opposed to gaming.
Some of the parts have a discount available til sometime this month only reducing the price you see a little more. LINK
Hopes this works for you and good luck.