Room search website development using XML feeds and database

I require the programming of a hotel room website which is designed to be search engine optimised.

I wish the website to be designed using a CMS and connect to a mySql database. I have subscribed to a number of hotel booking websites that have each provided an XML feed to provide information of the availability of rooms, pricing and booking. SEO would need to be a main consideration.

What I already have versus what the provider will deliver:
Currently I have a company logo and an unfinished website. I am keen to use a CMS and database admin backend. I would like to follow a similar style and layout of www.hotels-london.co.uk with a number of specific differences - one being a daily photo homepage like bing.com and the second being a focus on family holidays.
Other context/requirements that providers will need to know:
The website will offer a subset of the complete database of rooms (just family rooms and serviced apartments) and the database will have to be constructed from several suppliers (updatable through an appropriate mechanism) and in addition be updatable by the website administrator.

Specific expertise/background that I am seeking:
I am looking for experienced programmers who can integrate multiple XML feeds and work with external data providers to successfully integrate a third party booking engine.

Timeframe for delivery:
One month