Thanks for that little insight Vaaish. I love what you have done with your bases. I am not sure if I have the patience to go that indepth - we'll see.
Ok. Just another update...
I went and bought me this little baby. It was at the cheaper end of the scale yet I wanted to see what it was like. At AUS$35 however, I should have just gone with the cool looking Citadel one perhaps.
I also decided to go with a cheaper model paint which has almost the same colour as my original basecoat. Remember, this is just to get the initial layer happening:

It is interesting to note just how much paint you actually get. Frankly I was not impressed by the volume. After adding water as my thinner however, I had a half-full bottle:

So I went out in this 37C degree day, set everything up, connected the can and then.......nothing. That's right, NOTHING!  After adjusting everything, I can only conclude that the can of compressed air had nothing in it.
These situations are so disappointing. You actually set yourself up to do something only to get slapped down with such bad luck. Oh well, I will update this after going back to the hobby store (maybe tommorrow in 39C weather) *sigh* and get a replacement.