Promotional video for a launch

We're looking to have a video edited/produced for a launch of two new 'sister sites' that we will be launching at the end of this month. The launch of the sites will be an event in itself that we are holding at a casino and would therefore like a corporate, but swanky feel to it.

Our current main site is an online job advertising website for the UK marketing industry, displaying the latest marketing jobs from leading direct employers and specialist marketing recruitment agencies. www.onlymarketingjobs.com It's a generic marketing site, and the new sites will be more specialised i.e. Digital jobs and Agency side jobs.

It's a creative industry and the video should show this as well as having a corporate, engaging feel to it. It should be no longer than 1.5 minutes and we can provide you with logos/wording. At this stage I don't feel voice over is necessary.

Open to suggestions on the method of producing it, I'm not too clued up on the best tools to use.

Please include some examples of previous work along the same lines.

Look forward to hearing from you!

Natasha