For the case, the Antec 900 is probably one of the better options that you can get from Fry's, I don't really like that case much because it is sort of cheapy, but it has a lot of airflow and gets the job done. I do have a Fry's in my area so I've seen their selections.
The hard drive: Go for a Western Digital or Seagate if you can, they have the most reliable stuff and I don't think they are much more expensive at all than the other brands, should be about the same price actually. Just make sure it's a 7,200RPM SATA with at least a 16mb cache.
The RAM: Crucial is a good brand, but it is better to buy RAM with heat spreaders on them. Though, 4GBs with heat spreaders is going to run you a lot more so I won't recommend it to you since I know you don't want it, the high airflow in the Antec 900 should hopefully make up for the lack of heat spreaders, just don't overclock that RAM.
- - Ack, wait I just got an after thought, I think I saw Corsair 2X2 GBs going for something like 80$ and they had heat spreaders. It's this:
http://www.newegg.com/Product/Produc...82E16820145184 If you see that on the shelves get it instead, I would rather have ram with heat spreaders personally, even though a lot of people are going to shun Corsair though but it's still good, that particular ram got good reviews.
PSU: Well.. I am willing to bet that power supply doesn't have 18 amps on each rail, I think it has like 15-16 or something like that. I saw it in the store and on a site before - if it's the same one then I am correct. Little bit weaker than your average 600 watt but it should get the job done for you. I got a shitty 500w Antec with 18 amps on it's two rails for the same price, but Antec makes shitty power supplies in my experience so you should probably stay away.
The Video Card: Get the Visiontek HD4870, that is an extremely good buy and you would be going in the right direction with buying that.
The CPU / Motherboard configuration: # Intel Core 2 Duo E7200 with MSI P43 Neo3-F IMO. The MSI has much more features and the E7200 can be overclocked to the 3.0ghz if you wanted to, then it would be as fast as an E8400, but not an E8400.
My brother has the 5600+, just skip it.
I know that using an AMD Processor along with an AMD Video card would probably be good, because AMD Mobos are usually platformed more towards ATI cards (Optimized better for ATI cards). But the E7200 has the same clock speeds as the quad core, and you don't really need quad cores these days.
The AMD Phenom has 65nm (nanometer) technology which is getting pretty old and the E7200 has 45nm, which is very soon about to be outdated as well. The 45nm is also going to make the E7200 way more over-clockable because it uses less watts, makes less heat, and runs more efficiently (E7200 = 65 watts, AMD Phenom = 125 watts, ouch), therefore I believe you are getting a better experience in games by buying the E7200. I just personally think Dual Core > Quad Core for gaming, Quad for everything else.
The monitor: Looks good for it's price, my Grandpa owns a 19 inch full screen AOC monitor and it seems reliable, he's had it for some years now. (I'm sure he got that from Fry's too).
Just my two cents, it should all be compatible from what I read on the parts, and the HD4870 shouldn't bottle neck. I also changed your thread title, so if you want it to be something else instead then just PM me.