Doogal I think all of these have been listed here abouts previously but here's an encore listing just for you. See how you go wrapping your head around these - they always blow me away too!
http://en.wikipedia.org/wiki/Image:NewSolarSystem2.jpg
http://www.co-intelligence.org/newsl...mparisons.html
This one isn't visual, but it DOES give an excellent idea of the true scale of our solar system.
http://www.noao.edu/education/peppercorn/pcmain.html
and finally....
http://www.metacafe.com/watch/335005...eme_of_things/
If that last one doesn't make your head spin, nothing ever will again!
Cheers Doogal, welcome to the greatest mind bending hobby around.
Steve