Funny you should ask that. Funny=odd, I mean. For successful e-commerce, all you should need is a working Internet connection, liberal banking system, an economy unencumbered by protective trading practices, efficient / reliable postal service and a low cost of living.

One out of five ain't bad at least we've got mamak stalls

Back to the topic... I was going to suggest a few more sites, but after ping/whois each of them, realise only one of them is physically in malaysia. I always think Condom Malaysia Store,buy condom online KL kondom - sekondom.com is a great example of a simple e-commerce site, nice clear design, and all the info you could need.

Not keen on the spammy title tag though...