Hardware
Here are a few of the places I tend to shop. Note that I always try to avoid rebate deals – there are too many chances for these to go wrong.
Online vendors
If I need a hard drive, router, or any number of other bits and pieces, even a new laptop, I usually head to Newegg first. Many of their items include free shipping, and they often have specials that save a few bucks.
For Apple Macintosh computers, I usually buy directly from Apple online, or I’ll sometimes order from
MacMall. MacMall often has great deals. My current laptop was abut $40 less than the same from Apple.
I absolutely loveB&H Photo and Electronics B&H Photo and Electronics for photo equipment. They’re an authorized Apple reseller as well. These guys are based in NYC. If you ever get a chance to visit their store, I highly recommend it.
Buy.com does pretty well too.