448391 explanatory/tutorial video for a penny aucton site

Our website is [login to view URL] and it is a penny auction site. We want a video explaining to user the how our website works. We want something similar to: [login to view URL] and [login to view URL] We would like to have a video made which will explain how the website works in English and Greek. The Greek translation will be done by our team after you give us the English version. The duration of which will be about 2-3 minutes. We would also like to know if a video with the information in the above urls can be made using graphics and design like: [login to view URL] Please quote us a price on both options and the time line that is required. Please be so kind as to send us previous work you have on tutorial videos as such. Thank you.