Hello sir,
we are a software and website developing company located in India, but we are serving clients of Canada & USA too, to ensure smooth communication process, we have a local US number with us, so we can call you up any time you wish too. Coming back to your requirements we are already working on few custom made online stores using asp.net along with c# and mssql as database. One of them being a multiple seller online store, so you can except to have to have vast amount of data's, due to this reason we choose to work on SQL database, as you know managing data is quite easy using sql server, we can create views, procedures, triggers.
It is always advisable to have a clean and simple design for a online store so as to avoid low page loading speed. We try our best to enhance the speed of the website by using as many jquery functions as possible.
we would like to have few minutes of yours so that we can get to know your requirements even better and provide some more valuable suggestions which might boasts your website and give it a wow factor.
Looking forward to your valued response.
Regards,
OK Team