I too like the Meguires products for shine and durability.
Like most things it starts with a good wash, use Dawn for the first wash and a good wash mitt. Mine is lambs wool but synthetic is fine. Change out the water bucket when it gets down to about the half way mark. This keeps you from rubbing dirt on your car and reduces swirl marks.
After a good wash and rinse, completly dry the car and inspect all the surfaces, look for scratches, chips, discoloration, etc. Chips are the worst cause the wax can buildup in them making it look kind of funky, paint is the only way I know to repair but can be time comsuming if you have lots.
If the scratches are deep you may want to try a rubbing compound (turtle wax), try an area under the front spoiler first and dont rub too hard this stuff will strip paint.
Once your settled that the paint is as good as your going to get it wash it again, I use Meguires crystal wash, again dry the car completely.
Now would be a good time claybar the paint, use lots of detailer spray and work the clay after each area is done (follow package instructions).
Wash the car again to get rid of loose contamiments and dry again, chamios and water blade work great.
I use the Meguires 3 step system, 1 cleaner, 2 polisher, 3 wax.
I also have an oribital buffer as I'm old and my arms get tired :P I also polish twice and wax twice.
In between the coats of cleaner polish and wax I work on other things like the tires, windows, rims etc. The whole process take all day and I really get into it.
After all is said and done I get about 3 months of excellent paint protection and use Meguires quick detailer about twice a month to maintain the wax. Your part of the world may be cleaner than up here so you will get performance from your wax. Bonneme has some great pics of his Gold class wax job that held up nicely over the winter, something I truley envy