hello all am new to pc"s and am looking into upgrading or speeding up my pc and havent go a clue how to have seen posts about over clocking but dont know where to start my pc has the following spec EQS ab1s-rs690mkm motherboard, 2 gig of ddr2 ram, amd athlon 64 x2 5000+ processor, windows vista ultimate, is it poss to overclock my set up or am i better to buy new parts ? 
cheers
cheers