Starting Fresh help

I have always cloned my hard drives to keep everything the same. I have decided I do not want to clone whats going on with my current Mac Pro (2005). Just to many problems going on, and I don't want to mess up a brand new Mac Pro.
There is a lot of stuff I do not want on my new Mac Pro, and I have not updated much since intel took over because I simply can't.

Is there a way to start fresh while brining in some applications? Just trying to avoid the cloning. Plus I am not even sure I can clone a 2005 to a 2010 with all the Intel stuff.
Starting new will be nice, everything has just become a mess.

Thanks for any advice or links.

 

What I was thinking

Thanks. I typically do call it a G5 but left it out, figured people would get the same idea.
I had a previous post up regarding the cloning with intel, then recalled it was not possible. I just need to make sure all my loops for music apps I use get transferred, pics, movies and movies are simple anyway.
I just want to find the absolute best way to transfer the above with out loosing anything. It will be tedious I'm sure. I was a noobie with the G5 so im sure there's stuff hidden by accident and stuff I don't want at all anymore, why I would want to clone even if I could.