Logo for a young travel site

CompareTravel.co.za

We are a brand new online travel site. We are based in sunny South Africa. The site is http://www.comparetravel.co.za
On the site people can quickly and easily compare flights (from all the carriers), compare car hire (from all the car hire companies), find accommodation (and book live online), and compare holiday packages from the various travel agents. We are a 1 stop online travel site, and we want to teach people that they can be the travel agent.

People looking to make a travel booking (flight, car hire, accommodation, package holiday etc) online. They are looking for information, convenience and a cheap deal.
90% of our visitors are from South Africa. Some have booked online before, however some would be booking online for the first time. The use of booking for travel online is growing fast in South Africa.

-It needs to have the full url in the logo (comparetravel.co.za)
-We do not want it to be too techy, but want to keep the logo fun and light-hearted. However we do not want it to be childish. I want the logo to look professional, but that we are still approachable and easy to understand/work with/book through. It must have clean lines, not be too complicated and must be easy to recognise and remember.
-The logo should be suitable for use on our website, as well as business cards, letterhead and merchandise (t-shirts, coffee cups, etc).
-Please do not use any stock images or clip art in the logo

-The files we will require are:
Print file format - .ai (CMYK)
Web file format - .jpg and layered .psd (RGB)
Also, the logo will soon be used in a rpint campaign and the requirements for that are – at least 300dpi and a decent file size (A6 or A5)