Interesting observation that I had was that Pinnacle Micro Rejuvanator smells exactly like the cleaner that comes with the kit to clean and re-oil your K&N air filters.
Costco sells gallons of Meguiars Gold Class shampoo. Not positive on the price, but I believe it is under $20. You could easily get 60 washes out of a gallon.
Valublez,
Meg's makes a product called, "Deep Crystal System Paint Cleaner." I used it a long time ago and applied by hand. It seemed to work well.
I've also used Pinnacle Paintwork Cleansing Lotion applied with a Porter Cable DA and it worked really well.
I purchased some DP Wheel Glaze a couple of weeks ago and have used it on two different cars. It is very easy to apply and a little goes a long way. I used the product that was stuck to the lid of the jar to do two coats on one vehicle and one coat on another. The product goes on very easy...
Can't speak to the metro turbo attachment...
But I can vouch that the turbo tool from my Dyson DC07 vacuum works with my metro vac. I have a few other attachments from other vaccums that fit the metro vac, as well.