If you're looking a for a Michael Jordan Bulls Jersey, the first place I'd check out is eBay. I've bought a couple of Lakers jerseys from there and have never had any problems... Plus, I live in the UK, so any stores here that stock NBA jerseys tend to be mega expensive, so buying online makes sense.
You can even search the site for the keyword "Jordan" to narrow things down a little.
http://shop.bulls.com/search/jordan
