Ideally I'd put up a store in advance, take orders for a bit (with the advisio that it'd take a few weeks before they started shipping), get the items manufactured, then ship. Otherwise I can take on the risk of manufacturing the lowest quantity (~250) of items and hope that I fulfill enough orders to cover costs of manufacturing and/or whatever other costs are involved.
It'd be totally awesome if there was a site out there that said: "Tell us how many widgets you have, we'll take orders / process credit cards / paypal up to your inventory, and let people sign up for a waiting list in case you plan on doing a second manufacturing run."
I don't want to go through all the trouble of merchant accounts, or doing a bunch of grunt-work on the web (do enough of that during my day job). CDBaby's physical CD sales seems about the right level of effort, but are there other services out there that are good for selling things other than CD's?"