Building my first gaming desktop. Need advice on hardware selection.

TNT panels = fast speed
IPS panels = better colors
Just to throw some info out..

Well I got a few parts today at Best Buy.
First I picked up a Seagate Internal 1 TB HD (Model ST310005N1A1AS-RK) for $120 plus tax. I kinda wish the HD was SATA 3 instead of SATA 2 but it shouldn't make a huge difference since the SSD will be my primary drive and the Seagate is just a storage drive.
Next I picked up an EVGA GeForce GTX 560 2GB Superclocked card(Model 02G-P3-2069-KB) for $260 plus tax. However, I will be returning this card because I thought it was a Ti version. The aforementioned card is exclusive to Best Buy so you won't find it on Newegg. Here's the listing for it on Best Buy's website: EVGA - GeForce GTX 560 2GB GDDR5 PCI Express 2.0 Graphics Card - 02G-P3-2069-KB
The Ti version I mentioned in my original specs is cheaper through Newegg and should perform better than Best Buy's model.
Third, I bought a motherboard and processor combo. They were selling an Asus P8Z68-V Pro motherboard and an Intel Core i5-2500K for $430 plus tax on their website. I should be able to pick that combo up from the store next week along with a couple of 4GB stick of Corsair Vengeance DDR3 RAM I got for $52.
Finally I got an Antec 300 case for $60 plus tax along with a couple of extra 120MM fans for $15 each. It has a lot of great reviews and it cost about the same as the Cooler Master HAF 912 case I was looking at.

WolfSoul said:

TNT panels = fast speed
IPS panels = better colors
Just to throw some info out..

Thanks for the info Wolf!

I got an IPS panel Dell (U2412M) myself But it's a 24 inch However I know you said 20 but 24 might be a "sweet spot"
In the end all just depends on how much you wanna spend

what WolfSoul said is right, 24" would be nice, or at least 22" so that you could optimize your VGA (1920x1080 or 1680x1050). You might down power your psu to 700 watt, and allocate the budget for a 22" or 24" monitor.

you might as well consider cpu cooler with Corsair H80, it could make your rig look cleaner besides well-managed cable management.

He already downgraded to 650 W.. just noticed that then when I was about to recommend 750/850

I've actually decided to go with the following PSU:

Newegg.com - OCZ ModXStream Pro 700W Modular High Performance Power Supply compatible with Intel Sandybridge Core i3 i5 i7 and AMD Phenom

It's got plenty of reviews,an average of 4 eggs,and 3 rebates ($40 instant,$30 mail-in,and $10 off promo code) which effectively makes the PSU only about $50. If that's true then that's not a bad deal!

I know it's been a long time since I updated this thread but I have built my desktop and have had it running for several months now, possibly close to a year.
It runs great and I am about to upgrade to 32GB of RAM. I found someone selling 2 packs of 16GB of RipjawsX 2133MHz (4x8GB sticks) for a fair price.
I have attached a text file exported from Speccy, which details the specs, to this post. Maybe someone can comment on my build.