It all depends on the type of brush. I've got a shedload of detailing gear but yet to find time to clean my X. Only had it for two weeks and ended up having to run it through the local £5 hand carwash.
I use the Megs purple NXT wash BECAUSE I was told by their trader at Japday/Fest ages ago that it is better designed to suds up in a hard water area which is where I live :handsup: The Gold Class stuff is better for soft water apparently.
For waxes and the other products I find all the megs range decent for the money and you can buy it in store (halfords) easy enough. They often do a 3 for 2 as well so I stock up.
Oh and halfords now do a nice green microfibre brush for gentler wheel cleaning too.
Hoping to give the Evo it's first proper wash next weekend. Usual two bucket method followed by a thorough decontamination with a clay bar and then a few hits AutoGlym Super Resin Polish by hand and a coat or two of Collinite 476s which is ideal for winter.