Hi
There are many great scripts which you can install to make such a site. Also you will need to have enough bandwidth as such sites will be getting a lot of traffic since it is aan auction site.
Anyhow, the first thing you need to do is to decide your hosting needs , then if you need to use some free but powerfull script for the use of the site or if you want to let someone program it a custom one which will cost you a lot in that case.
Also the design of the website. Just try to post more information and also if you have any questions then feel free to post them.
All the best
-- This message may have been cut off and the rest will only be shown to members. To become a member, click here --