I wouldnt normally recomend an all in one wash and wax because there generally **** but the new one from meguiars is actually really good.
http://www.cleanyourcar.co.uk/washin.../prod_681.html
Will definatly be using it again for a quick wash and when there isnt time to wax, it would be also good to use at shows to give a car a spruce up without removing any previous wax or sealents