I use the following company, here's there porfolio link
Logo Design Examples
They've done about 5 logo's for me including
Booze Britain,
Close Protection World,
Softplay
They are currently working on juniorvips.co.uk , this link forwards to there work in progress. Its going to be a child care site for my sister in her home town, just getting the logo right before I can get her a basic site built.