Graphic Designer for A4 flyer

I am looking for an experienced, reliable graphic designer to design a double sided colour A4 leaflet (3 fold) The flyer is for one of my marketing clients and I shall be creating the copy for it. The flyer will be promoting an up market car valeting business.
Turnaround will need to be approx a week. Any examples of work would be much appreciated. Possibility of further work on an as and when basis.

Thanks