People, this is REALLY clear to me. Staples is supplied by Ingram Micro - the BIGGEST supplier for companies such as buy.com, Staples, etc. These CPUs are NOT advertised on Staples.com because normally Staples does NOT carry them. HOWEVER, because Staples is connected with Ingram Micro, they WILL bring it up on THEIR screen even though YOU won't be able to bring it up. Just call, mention the SKU (starting with IM) and you'll see that they'll pull it up for you. Give it a shot
BTW, you can get Staples to sell you ANYTHING that Ingram Micro sells including 24x Plextor, Z560 etc. All you need is IM number and you are set.