Since Etch is only a few months away and it's been really stable for some time now DebianTutorials.org figured a quick trip down the upgrade path was in order.
Read it here
Now, your hardware is different than mine, we probably run different kernels and have different programs installed, so if you're the least bit weary – cover your ass and backup, research, etc. before you do this. Otherwise upgrading to Etch (Debian GNU/Linux – Testing) is a snap.
[Print this out and read it twice. I can't write a coherent tutorial to save my life]