Thanks for the help,My lag spikes have gone down, A couple of things for the map creator, I do understand it is a work in progress but
Can you change the wood Posts in the starting area to ether Fences or Nether Brick Fences because some people(like me) like to see it all symmetrical and to make the wood Posts is hard to make in the beginning plus I don't know if you have added Brick to make the Coke Oven
In the Nether, the stairs near the bottom you can see this http://img267.imageshack.us/img267/6144/20120229110452.png
if you move it out one block and do the same with the other blocks below, the Glowstone at the bottom will look better
SPOILERS
When I tried going to the cathedral in the nether I saw Lava Slime Spawner Spawning them in the lava, don't know if it was just me but you might want to move them
That is all for now, Thanks for reading and Thanks for the map