Okay this is how i transfered my tank and it worked really well, so i will try and say it step by step on how i did it.
1) i filled the new tank up with brand new water and i seeded it with media from my previous tank. I pretty much cycled the new tank which took like 2 weeks, but could have gone faster if i used more media or added some live rock, but i really wasent in a hurry and didnt wanna risk a spike in my other tank
2) when the new tank was cycled i added half if the live rock from the old tank and waited 2 days until i added the rest. I did this because if you take out too much rock at once it can really jack up your previous system and i wanted to be safe!
3) after i added all of the new rock i added a strong fish to the new system to see how things would play out. Everything was ok so within the next few days i added the rest of my fish and corals with the rest of my seeded media from my old tank. I did a very very long acclimation for the fish.
4) after all that was done i watched the levels for the next few days and had some emergency water change water already made in case there was an epic spike!
Note: when removing rock from the old system to the new try and take them out slowly to avoid tons of sand getting kicked up and causing an ammonia spike! Also, you can add fish and corals slower then i did, but a few people on here convinced me to just do it... Haha. Also, i had brand new sand for the new tank, didnt wanna transfer tons of cruddy sand from the old tank.
Hopefully i didnt skip over anything!