Re: creating a webshop
purplerose,
Most of the webhosting (I am not talkin free ones) now is available with many tools that can facilitate ur requirement (may not fulfil it), best way is to hire a professional with good reputation & let him do the job, alternatively ur paypal as has been suggested.
Or as mentioned merchant account, is another option. The step by step software wont help u security & credit information it may help u build a basic site though.