8000/-

Hi guys, I own M2N-MX mobo + Athlon X2 4000+ pros and got chance to flush it for RS 4000/-.Please suggest me the motherboard+prosseser combo around RS 8000/- to compliment my 8600gt 256MB DDR3 card along with 2GB palit 667 mhz RAM for gaming.Ya I know it will not be a great system...