Very very noobish questions here cz i nvr played on9 games on my own pc , for the sake of diablo 3 , might hv a go at it.. guys pls guide me on the basic specs needed to run the game ,

Ping: ???ms (how 2 check)
Lag Spike : ??????
Connection : 1mb screamyx

cpu spec
intel core 2 duo e4400
4gb ram
nvidia geforce 9400gt 512mb

im not looking for crystal clear graphics , but a smooth n "playable" game shud me just fine for me.. Thanks!! Sorry for the noobish spec pc..