Wanted to know in which language should I ask developers to make a online shopping website ? Php/MySQL or Windows platform or others ? @Mod: I guess, this is the best section to ask !
Alot of people who want stores built prefer to use Magento But I have built stores on Wordpress as well successfully. I hope this answers your question. If not please elaborate more and I will try to answer
I guess php/mysql since ASP.net is more complicated and requires special server configurations... but why don't you use free carts like PRESTA SHOP ?
What about Ruby on Rails or something done in Ruby? They already have a library for dealing with credit cards and payment processors. It called http://www.activemerchant.org/ and it is currently used by Shopify. Also why you have to build it from scratch? Wouldn't be better to use some already built solution? I have setup a store using Drupal+Ubercart one time with PayPal integration. Kind of messy, but is very powerful. Also you should take a look at Magento and osCommerce. You should also try Shopify and Big commerce as very simple but powerful solutions.