Replying to Moving a premier project to an external hardrive?

Hey can anyone tell me how to move my entire premier project to an external harddrive?

I need to move it all off my main computer to re format and I still need it all to work together properly. Kinda hard to explain, but there is a good 40 Hours of footage all cut up named etc that i dont want to have to redo just because i moved it across computers.

Any help at all with this would be greatly appreciated etc. Sorry if the question seems stupid but i really ont want to fuck this up. Cheers