However, I'm the man that knows nothing about ocing, will appreciate any advice on how to go about with evga 780i mobo and e8400 cpu and 4g of ocz reaper ram(DDR2).
Learn your Rig first. Get everything installed and running how your want. Read about overclocking, search the forums (not here) about your motherboard, processor, memory and what others have overclocked it to, what volatages they have use etc. Learn learn learn, then in a few months after you really KNOW your rig then maybe, maybe start OCing a little. Fastest way to kill a rig is overclock and NOT know what your doing. You take the chances of frying your memory (usually goes first) or your processor or MB. Congrats on your first build.
