[Advice] nVIDIA GeForce Upgrade

[kizika]

Okay, I am looking into upgrading my graphics Card, it is currently a nVIDIA GeForce 9100.
I need to be able to play a Korean MMO called Flyff. I currently do not have enough space for the shadow feature.
So, what would be an upgrade from a nVIDIA GeForce 9100? *Cheap as possible*
System information that I saved from my nVIDIA control panel:

[Display]
Processor:        AMD Athlon(tm) II X2 215 Processor (2699 MHz)
Operating System:    Windows 7 Home Premium, 64-bit
DirectX version:    11.0 
GPU processor:        GeForce 9100
Driver version:        186.40
Stream processors:    8 
Core clock:        500 MHz 
Shader clock:        1200 MHz
Memory clock:        525 MHz (1050 MHz data rate) 
Memory interface:    64-bit 
Total available graphics memory:    2431 MB
Dedicated video memory:    256 MB
System video memory:    0 MB
Shared system memory:    2175 MB
Video BIOS version:    62.77.2F.00.06
IRQ:            23
Bus:            FPCI

[Components]

nvCplUIR.dll        2.5.397.07        NVIDIA Control Panel
nvCpl.cpl        2.5.397.07        NVIDIA Control Panel Applet
nvCplUI.exe        2.5.397.07        NVIDIA Control Panel
nvViTvSR.dll        8.15.11.8640        NVIDIA Video and TV Server
nvViTvS.dll        8.15.11.8640        NVIDIA Video and TV Server
nvDispSR.dll        8.15.11.8640        NVIDIA Display Server
NVMCTRAY.DLL        8.15.11.8640        NVIDIA Media Center Library
nvDispS.dll        8.15.11.8640        NVIDIA Display Server
NVCPL.DLL        8.15.11.8640        NVIDIA Compatible Windows7 Display driver, Version 186.40 
NVCUDA.DLL        8.15.11.8640        NVIDIA CUDA 2.2 driver
nvGameSR.dll        8.15.11.8640        NVIDIA 3D Settings Server
nvGameS.dll        8.15.11.8640        NVIDIA 3D Settings Server

 

[Lemur]

NVidia GTS 250

 

[kizika]

Thanks so much! Just bought it off amazon and waiting for it to be shipped
P.S. I added to your rep