which e-commerce software?

hi, I am starting a business about buying and selling collectable items. I signed up with Hostgator and am bewildered at the choices that I can find in Hostgator, and I have no idea if I am choosing the right e-commerce software. I have tried OsCommerce but I could find no help files right away and it looks more complicated than they seem to indicate ('user friendly'). I am trying them all and so far Prestashop looks more approachable for me; it has some videos and it looks less convoluted than OsCommerce. I know my way around a computer but I am no expert, so maybe some of the experienced guys here can give me some suggestion? This will be a simple shop with a paypal cart, only a few items with descriptions. Possibly some links to related products from other companies, so I would also be their affiliate. Nothing else, no videos, no fancy stuff.

The choices in Hostgator are:

Oscommerce
Magento
Prestashop
ZenCart
Opencart
Tomatocart
phpCoin

what do you think it's the 'best'? I only earn about 1300 bucks a month so I have to watch expenses very carefully.

What actually happened was that I have a store with Highwire Commerce. They are ok and their store templates are VERY,VERY easy to use....nothing like Oscommerce. But because I sell collectable items in two main price ranges ( one type costs over 1000 dollars, the other under 100 dollars) and because I accept paypal only for the sub-100 dollars items (for the other type of item I accept paypal too in most cases, but buyers have to email me and ask me questions...in other words I feel unconfortable to slap a few £ 1000 listings with a paypal cart where badly intentioned people and scammers can just click 'buy'.

Because Highwire Commerce can only implement a paypal cart on all my inventory, or no cart at all, and because Hostgator does not have that limitation, I thought to transfer my store with Hostgator, but now I am seriously reconsidering as I didn't know that implementing a paypal cart would be so complicated and / or expensive.

So that's my situation, I am mentioning all that as may be helpful for me.

by the way, all that horrible dvd and Iphone image stuff that you get when you first install one of these programs , can be deleted after, am I right? When I installed OsCommerce and saw all the dvd banners stuff, I was horrified....

Magento has less rubbish but has a banner about going back to school. My fear is that, as this stuff is 'free', they can stick that school and Iphone crap on your store front and you can't get rid of it. Am I right in the case of the above mentioned software?



thank you for your input!