Trying to decide between the following

[spphoenix]

nVidia GeForce 9500 1GB PCI Express X16 ($130):
* Chipset: GeForce 9500 GT
* Engine Clock: 550 MHz
* Video Memory: 1GB DDR2
* Memory Clock: 1 GHz
* Memory Interface: 128-bit
* Memory Bandwidth: 16 GB/s
* Bus: PCI-Express x16 (PCI Express 2.0 Supported)
* RAMDAC: 400 MHz
* Stream Processors: 32
* Max. Resolution: 2560 x 1600
* Connectors: Dual DVI-I (Incl. DVI to VGA / DB15 Adapter), TV-out (HDTV ready)
* Thermal: Fansink
* Support nVidia SLI Technology
* Support Microsoft DirectX 10.0 Shader Model 4.0 and OpenGL 2.0
* Built For Microsoft Windows Vista
* Package: Retail

nVidia Geforce GTS250 1GB PCI Express X16 ($220):
* Chipset: GeForce GTS250
* Engine Clock: 740 MHz
* Video Memory: 1GB DDR3
* Memory Clock: 2 GHz
* Memory Interface: 256-bit
* Bus: PCI-Express x16 (Support PCI-Express 2.0)
* RAMDAC: 400 MHz
* Stream Processors: 128
* Max. Resolution: 2560 x 1600
* Connectors: Dual DVI (Incl. DVI to VGA / DB15 Adapter) ; TV-out(HDTV Ready)
* Thermal: Fansink
* Support nVidia SLI Technology
* Support HDCP - High-bandwidth Digital Content Protection
* Support Microsoft DirectX 10, Shader Model 4.1 and OpenGL 2.1
* Requirements: Minimum 400W Power Supply with +12 Volt current rating of 26A
* Requirements: Minimum 450W (w/ PCIe 2.0 6 pin Plug)
* Package: Retail

nVidia GeForce GTX275 896MB PCI Express X16 ($340):
* Chipset: GeForce GTX 260
* Engine Clock: 633 MHz
* Video Memory: 896MB DDR3
* Memory Clock: 2.686 GHz
* Memory Interface: 448-bit
* Memory Bandwidth: 127 GB/s
* Bus: PCI-Express x16 (Support PCI-Express 2.0)
* RAMDAC: 400 MHz
* Max. Resolution: 2560 x 1600
* Connectors: Dual DVI-I (Incl DVI to VGA / DB15 Adapter); TV-out (HDTV ready)
* Thermal: Fansink
* Support nVidia 2-Way/3-Way SLI Technology
* Support HDCP - High-bandwidth Digital Content Protection
* Support Microsoft DirectX 10.0 and OpenGL 3.0
* Support nVidia PhysX Technology
* Power Requirements: Minimum of a 500 Watt Power Supply (w/ PCIe 2.0 Support)
* Package: Retail

 

[Onus]

You will have no problem running all your office applications on a 9500GT.
OTOH, if you will be playing demanding games like Crysis, get the GTX275 if you can afford it, as the 9500GT will run and hide.
The best choice depends on what you will be doing with your PC, and the resolution of your monitor.
What PSU do you have? An Antec Earthwatts 500 will have no problem with any of them; an Apevia/Aspire "680W" model will likely melt.

 

[spphoenix]

The computer is going to be a gaming computer primarily.

The monitor is a 22" wide screan HD.

The PSU is a Zumax 650 Watt Power Supply (Dual & Quad Core Certified) - PCIe 2.0 Compliant.

Cooling shouldn't be too much of an issue, its going to have 4 or 5 fans going.

 

[IH8U]

Drop that no-name PSU ASAP! Look for Antec, BFG, OCZ, PC P&C, Corsair, and Silverstone (unless in a 220v area). At least a 550W, with either the 250, or 275 (Tho I'd also look at a 4870, or 4890 as alternate options).

 

[spphoenix]

Any recommended suppliers (or a link perhaps)

 

[Twoboxer]

Slightly different advice: Use your psu if you own it, but if you get flaky performance look there to find the problem first. If you've got a Kia, there's no need to toss it and buy a Lexus if it will get you to the grocery store.

If your price for the 250 is $US, look at this one, one of the higher priced versions of the card:

http://www.newegg.com/Product/Product.aspx?Item=N82E16814130470

The 275 is a fine card. The 250 will game well particularly if you are willing to trade some resolution and features in certain games if you are budget-constrained.