Here are some of my favourites:

Rick Astley v. Madonna - Never Gonna Give Up Your Holiday

The Clash v. The Jacksons - Should I Stay Or Should I Boogie

TLC v. Marvin Gaye - Sexual Waterfalls

Stevie Wonder v. Destiny's Child - Bootystition

The main site is Mashmix.

As far as legality is concerned, the site owner insists that the Bootlegs are direct from the DJ's/producers that have created them, apart from the ones labelled MTV Mash Ups which are obtained in a "different way".

Therefore I do not recommend you download anything from the MTV Mash Ups section.

Mods/Chris - I hope there is nothing wrong with providing these links as I am linking to what I believe to be freely available original material. If you deem otherwise then cest la vie...

Total beginner where computers are concerned (as far as saving/downloading go)

How would I save one of these tracks onto my computer ? I dont have an MP3.

File and save would be all to easy (shame i cant do that)

try "save target as"

you'll find a Mp3 player on http://www.tucows.com

Amongst others!

I'm not cleverer enough to create a mashup like that!

Although in my younger days at the roller rink. I used to do a live mashup of Bound for da reload and the D&B superman theme.

I also remember one of the other DJ's doing one with Azzido da bass and The magic roundabout.