i want to buy new Pc but in parts (means main board separate Ram separate etc etc)...i have 256MB AGP card...so i needed AGP Slot Main Board with DDR2 RAM...processor upto 2.8GHZ...so i need any one who knew prices of following stuff but as a 2nd hand...

1) MainBoard (AGP SLOT WID DDR2 RAM)
2)DDR@ 1GB
3)Processor 2.8