@ Baz and Herman- I will give Phase reversal. To ask a silly question, is that the same as 'Phase Inverting'?... actually, probably not.

That NIN track is one of my favorite songs of all time, it is wonderful. There's a pretty minimalistic version on youtube. I may actually rip the audio.

I was messing around with the FL8 multi band compressor last night to see if that would do anything, it isn't bad if but a little basic.
Are there any plugins (free ones at the mo, money is a very precious comodity) That you can recommend?

Again, Thanks for the info and tips guys, it is very appreciated.