Desktop able to play TF2 smoothly.

[jackdog64]

I don't want a recomendation higher than $400, but lower than $300 either, and no used and integrated graphics either.

[SpicySnow]

Hmm. Thats a very small budget you got there.
I think your best bet is to buy a DIY Combo + a graphics card. You can save some money by building the computer yourself.

This is a very weak computer, and I don't think you can do too much with it. With that budget and the video card I recommended, you should be able to run TF2 fine. But no guarantees on highest graphics.

Newegg.com - Computer Parts, PC Components, Laptop Computers, LED LCD TV, Digital Cameras and more! ($296)

Amazon.com: HIS H775F1GD Radeon HD 7750 1GB (128bit) GDDR5 Displayport HDMI DVI (HDCP) PCI Express X16 3.0 Graphics Cards: Electronics ($100)

OR: If you are willing to spend a little over (Well worth the extra cost for 10% more cost, its like 30% better)
Amazon.com: Sapphire 11201-00-20G Radeon HD 7770 GHZ 1GB DDR5 HDMI / DVI-I / Dual Mini DP PCI-Express Graphics Card: Computers & Accessories ($120 after rebate)



IMPORTANT: This computer those not come with keyboard, mouse, monitor, or speakers. The rest have to be purchased separately.

If you need a monitor, it's pretty impossible to keep the price under $400. But here you go:

If you need mouse and keyboard:
Amazon.com: Logitech Desktop MK120 Mouse and keyboard Combo (920-002565): Electronics
Monitor:
Amazon.com: Acer S211HL bd 21.5-Inch Widescreen Ultra-Slim LED Display - Black: Electronics

[Wicked Systemz]

I know you said no used, these aren't used PCs I can get you. They are off lease business PCs that are fully refurbished with a fresh install of a new copy of windows 7 & warrantied. You would have 2 add a graphics card but I can get you 1 with a similar processor starting in the low $200's including shipping 2 your door depending on how much ram & the size hard drive you would want. If you want more info either email me @ Wicked_Systemz@WickedSystemz.com or visit our website Home - Wicked Systemz I have 12 off lease systemz for less than $300 listed all dual core processors with Windows 7.