General graphics / photoshop freelancer required

I am looking for a freelancer that is able to provide some box standard, easy graphics work, e.g. on photoshop, on an on-going basis. I have some items that need to be put together from time to time, brochures, catalogues, etc. and be prepared for print.

Little design work is required as corporate ID, logos, etc. are already available. Basically it requires switching some photos and replacing some text etc. a couple of times a year.

Candidates based in London are preferred.