what would it take to convert you to the other side

But the same answers would apply to both situations (a theist becoming an atheist and a theist converting to a different religion), so it would be valid to ask what it would take for a theist to convert to a different religion.

If there was empirical evidence to show that God actually exists, would you guys become a Christian and worship God?

In the case of God, all points of empiricism are reliant on him and so the trust we place in that empirical method must be shifted from the method to that which stands behind the method. Namely Him.

John 20 writes:Jesus Appears to Thomas
24Now Thomas (called Didymus), one of the Twelve, was not with the disciples when Jesus came. 25So the other disciples told him, "We have seen the Lord!"
But he said to them, "Unless I see the nail marks in his hands and put my finger where the nails were, and put my hand into his side, I will not believe it."26A week later his disciples were in the house again, and Thomas was with them. Though the doors were locked, Jesus came and stood among them and said, "Peace be with you!" 27Then he said to Thomas, "Put your finger here; see my hands. Reach out your hand and put it into my side. Stop doubting and believe."28Thomas said to him, "My Lord and my God!"29Then Jesus told him, "Because you have seen me, you have believed; blessed are those who have not seen and yet have believed."

More John 20 writes:30Jesus did many other miraculous signs in the presence of his disciples, which are not recorded in this book. 31But these are written that you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name.

iano writes:Sorry. The contextual intent attempted to convey the notion that empiricism would cease to be the independent basis whereby you know God exists. It would be reduced to the position of middleman - in the same way that a hammer is the middleman between me and a nail.The nail is pushed home by me and I can chose any number of means to push it home. You are made aware of God by God and he can use any number of means to make you aware.

iano writes:It wouldn't be too difficult to appreciate a God capable of creating 5 senses (6, if counting proprioception) creating another one which is capable of direct interaction with him. It's not necessary to elaborate further than "personal revelation" as that interaction in order to make my point.

iano writes:You don't seem to have grasped the problem.