First Time PC Build

I've been using a very, very poor laptop for the last six years and it recently died. I've compiled a system at cyberpowerpc.com thats perfect with my 1300 budget. I wanted to know if there are any hardware incompatabilities or other issues I should be aware before buying. Also, if cyberpowerpc is reliable; won't buy the parts from newegg because, while i could figure it out, its not worth the risk of screwing something up as im not 100% sure what I'd be doing. Open to any and all suggestions, but i'm pretty set on the hd 8450. Thanks!!!

CASE: Raidmax Sagitta II Mid-Tower 420W Gaming Case w/ Side-Panel Window (Black Color)
PSU: Upgraded to 635W
CPU: (Quad-Core)Intel® Core™ 2 Quad Q9550 @ 2.83GHz 1333FSB 12MB L2 Cache 64-bit
MOTHERBOARD: Biostar TP45 HP Intel P45 CrossFire Chipset LGA775 FSB1600 DDR2/1066 Mainboard w/GbLAN, USB2.0, & 7.1Audio
MEMORY: (Req.DDR2 MainBoard)4GB (4x1GB) PC6400 DDR2/800 Dual Channel Memory (Corsair or Major Brand)
VIDEO CARD: ATI Radeon HD 4850 PCI-E 16X 1GB Video Card (Major Brand Powered by ATI)
VIDEO CARD 2: NONE
VIDEO CARD 3: NONE
LCD Monitor: NONE
HARD DRIVE: Single Hard Drive (320GB SATA-II 3.0Gb/s 16MB Cache 7200RPM HDD)
Data Hard Drive: NONE
Optical Drive: (Special Price) LG 20X DVD±R/±RW + CD-R/RW DRIVE DUAL LAYER (BLACK COLOR)
Optical Drive 2: NONE
SOUND: 3D WAVE ON-BOARD 5.1 SOUND CARD
As well as 64-Bit Vista Home Premium
$$$$ - 1326

+1. Raidmax PSUs are crap. Make sure you know what you're getting, and that it isn't Raidmax.
2x2GB RAM sticks will pose less potential problems (e.g. vdroop), and leave room for upgrades.
With this group to assist you, buying parts to build yourself carries much less risk, whether from Newegg, Tigerdirect, Microcenter, or any vendor.

You can do better.
You got good advice from previous posters.
A rough estimate to build the same system using good parts is $1150.

If you will primarily be using this for gaming, you can do better for the same price.
Newegg has the best customer service and return policy around. From newegg, you get the manufacturer's warranty, not the oem builders warranty which is typically one year. Intel, for instance, warrants it's cpu's for three years.
If you get a good parts list from these forums, it is hard to go wrong. I dare say that you will get better support from these forums than from any for profit builder.

Now that we talked you into it, I suppose I'll have to work up a list for you

To answer your question, the two HIS GPUs you listed... one is overclocked and one is not, hence the $20 difference.

You should take one of the combo deal with the case, for instance the Neo 650W. Save some money and get a better PSU as well.

I'll have a list for you in a min.

Thanks ALOT Proximon!!
Just one more question, are there any recommended upgrades that will have a noticable effect within $1300?
(I want to use this computer mostly for gaming) OR should i spend the rest on a monitor

ALSO, i was watching some computer building videos. Are static glove things necessary?

Based on Geofelt's comment;

http://www.newegg.com/Product/Prod [...] 6814161247

The only difference I see in the specifications tab is : gddr 5 @ 3600 MHz as compared to gddr 3 @ 1986 MHz

So is that significant for the extra $100?

Once Again Thanks to everyone. Last thing is Do i need to buy Thermal Compound for the CPU, or is that included with the CPU or the CPU cooler?

For the RAM, try and get a 2x2GB configuration. If you're mainly going to use the system for gaming, they go with an E8600 instead since the higher core speed is more important at the moment and should save you a few bucks. Since you're getting a Radeon 4850 get the 1GB version. As for the case the SIMILIDON has better cooling and is easy enough to work with. I don't think they give you too many options on cases their though ^_^. I say start off with a configuration that has an Antec case and go from there.