mcphearson, I run the Opencart store on my local Apache server, but when every item is registered and sorted the store will go semi-live. Its a big collection of banknotes, bonds, title deeds, antiques, gemstones etc, etc...
For me eBay/paypal is "no-good" alternatives to the great Opencart system since I want to have direct control over all the steps. I get a bad "feeling" if my top quality items would be around eBay junk! No thanks! So it's (alt least for me) safe to say: Opencart is a blessing! The interface/administration looks SO GREAT directly out-of-the-box...
It took some time to get used to the registration of images on their own, and the product on its own... and at first i HATED it, but now I LOVE the system as its quite flexible and will be very valuable when I'll do "bonus deals" (combined items).
In my 1st session I think it'll be 350+ items in the store, but quite fast I'll have it up to near 1000. I would never put this much work in a software I did not trust! osCommerce might have the addons and all that "fluff", but I simply does not like the "orginal" product. The Opencart coder is a genius and have succeded to inject his vision here and it delivers directly... osCommerce needs hacks/addons etc, etc, etc and STILL fail to deliver what (sorry to repeat myself) Opencart does right from the box.
Sorry for writing as much as I do here, but it feels good to get all the "frustration off" from all my trails and errors with other cart-systems >:(
So, all in all... Here is my "secret" Opencart to do list:
1. Get a good dreamlayout (that was done thanks to you mcphearson) - DONE
2. Get Javascript popup images to replace Lightbox - NOT DONE
In emergency I'll just remove "lightbox" and the images will show up in the same window, and when the customer has seen it, she/he just have to BACK one page... An alternative is to use a _TOP window to replace the Lightbox... Oh well... this is the "last" step I'll look into
3. Replace all the cursed (and evil) address field with ONE box where the customer write the address AS she/he wants it... yeah, ALL homepages always FORCE users to use them boring UGLY boxes with Address 1 box, Address 2 box, Country < I hate them the most, its often a drop-down list to roll in... its a INSULT to customers!!!
It'll be a NIGHTMARE to "fix" (and remove) all not needed address boxes and the country box

MySQL sure is a nightmare as I'll have to make a "new" item, if I cannot be smart and change Address 1 box into a FULL textbox? Hmm... and then "hide" the other boxes!? Bah! I'll have to make a forum search laters or make my own post on this before I mess around in it...
Soooooooooooo... I have a server ready for the Opencart and will give you the URL the moment it's semi-live
Thanks for all help so far...