Hi, I'm interested in putting a virtual store online for a client and I'm a little bit unsecure about safety. I already got the basics at PHP, SEO, MySQL, Modules, Webdesign, etc.

My question is: what should I use? A module like oscommerce or code myself the whole virtual store? Are the modules safe?

I'm not lazy, so links, articles and other readings will be an excelent answer. I just wanted to consult ppl with experience in the area.

Sorry about any misspell, english is not my native language. Thanks a lot!