Guys, please give it a rest. The OP asked for information on PCs and noted they don't want a mac, a mod should delete all inflammatory and mac related posts from the thread and hand out a few three day bans. ERJL, ShotByTom, please go elsewhere, and perhaps you need a voluntary break from the forum.
I had a look at Dell and HP, I found it difficult to configure a desktop PC with an SSD, hard drive, and general decent specs. They want to sell you what they want to sell you and don't seem interested in letting you configure things much.
CyberPower have a good system, very configurable, this one
, great components. Swap in an Samsung 840 SSD and a 2TB WD Black drive, change cases and fans etc to your preferences, go to a lower spec video cards (the cheapest nVidia with 1GB or more of RAM), change the motherboard to one with native USB 3.0, maybe add a bit of cooling, you have yourself a better PC cheaper than Dell.
Same thing through newegg would be cheaper, but you'd have to put it together yourself, test it, and warranty is more difficult.
Edit to add - i7 will give you faster batch exports, and maybe slightly faster interactive performance, but near doubles the speed of video encoding. Worth it IMHO only if the extra cost isn't a big deal to you. I got an i7 just because the extra $100 or so didn't much matter to me, 3 years ago, glad I did as the 2600K is still going strong.