My system will work with HD5750 ( i checked on AMD site).
Intel Pentium Dual-Core E5300 2,6 GHz
2GB DDR2 RAM
450W power supply
Gigabyte G31M-ES2L that is all i know about my PC
My budget is about 130-150 EUR.
Not that badly, my (1-2 months), becouse my card is Sapphire Radeon HD 4350 DDR2.