Hi sburgess,
Have a look at the following reviews on easystorecreator.com:
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They offer a 45-day unconditional money back guarantee so you can try it out and see if it works for you with the confidence that you will get your money back if it doesn't.
You might also want to have a look at eCrater.com. They offer both a free marketplace and an online store which is easy to use. For more information on eCrater and other good ecommerce solutions, please check out this blog entry:
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You can also search the forum for other posts on ecommerce websites/webhosts that other members have used before.
All the best,