I've still to try Meguiars, waiting to run out of my Autoglym. Thats not a bash against Autoglym, infact, so far it has been brilliant. I like the shampoo and the resin polish is pretty nice, although I only used it once (too busy

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Did try their new spray on wax today, very very good for the 10/15 mins it took to apply, especially as it included the drying of the car while applying it. Yeah, its not the best possible finish - but looks pretty smart, and did a good job of the windows as well!
Megs next probably - or might get some stuff online. Still need to get the few scratches and chips done though grrr