I'm not clear on what you want help on here. Are you looking for a custom shopping cart solution or improve on driving traffic to your site?
I'm going to assume you're trying to improve your traffic, but it's not clear on what you've tested or tried. There's a wealth of knowledge on the web, but from your initial request it doesn't sound like you've done your homework and you want me to point you in the right direction. So start with this: http://blog.appsumo.com/getting-the-most-from-setting-up-a-n... for starter information.
I'm going to assume you're trying to improve your traffic, but it's not clear on what you've tested or tried. There's a wealth of knowledge on the web, but from your initial request it doesn't sound like you've done your homework and you want me to point you in the right direction. So start with this: http://blog.appsumo.com/getting-the-most-from-setting-up-a-n... for starter information.