I recommendation EasyStoreHosting if you want to get an online store launched quickly, especially if you lack technical skills and is good for SEO also.
in my opinion, any thing that has SEO in the product is nothing more then a selling point...seo addons in my opinion do not do much as they used too, they are now saturated like everything else, everyone and the family now uses products that contain SEO, of course it is now the best selling point to sell any product that utilizes seo... in my opinion, products that have seo are nothing more then to make the url pretty; I am not sure of this, but I think google would rather know your true url, rather then dressing it up using a fake seo url.... no addon on this planet that you add to your cart will get you ahead of anyone else... your addon's will not result in success or failure, that part is 100% up to the owner, not the addon, no matter what it is.... and having keywords in your seo url only provides a little something, but not enough to make up your total seo score... keywords in your url just do not make that much of a difference, some maybe, but not that much...google already knows people spam their urls, they are not to interested in keywords in your url, but the content on your site, and they are also not to interested in meta tags either due to spamming, some engines still use meta maybe, but not many... and if you do not believe me, then look at dp's url, it is non-seo, and look how successful DP is without using seo urls....