Old equipment - looking to upgrade. Confused!

[Jeraden]

Sorry if I sound like a newbie here, but I'm really confused with the current equipment/dishes/switches/cabling/etc. I want to get a dish 622 unit. I currently have:
Receiver: 501 (lol)
Switch: SW64
Dishes: Dish 500 at 110/119, 2nd dish at 65
I also have a 6000, but its inactive currently.

I want to get the 622 and probably stop using the 501, though maybe relocate it to another room, I'm not sure. My confusion is with all the wiring/switch requirements. I only have 1 cable running into the room with the 501 receiver. I really don't see how you could easily run a 2nd cable in there. I understand there is a way to run a 622 off 1 cable. But that means I need a new switch and possibly new LNB?
If I just call up dish and say I want a 622 with installation, will the installers install the new switch/LNB? Or will they insist on running a 2nd cable to the receiver (which I honestly don't think is possible based on where the cables enter the house)?
Or do I need to do all the wiring/switch/LNB upgrades myself first?

Are my actual dishes ok still, or do I need something new for those also?

Thanks for any info!

[dmspen]

If you call and get the 622, Dish will come out and install a new antenna and switch. It may cost you $49 or $99, but IMO it's well worth the price. The installation is guaranteed. I run my 622 with a single coax.

BTW, I have a 501 sitting in my garage.

[garys]

If you switch the lnb on the Dish 500 to a DPP twin, and the lnb on 61.5 to a DP dual, you can run wire from 61.5 to the input on the Dish 500 (remove the sw64 as switch is built into the DPP twin) and use the one wire to where the 622 and use DP separator (it comes with the 622) to run both tuners of the 622. You would have to run second wire from the Dish 500 to new location for the 501 if you decide to use it. The installers will change out equipment for you. The actual dishes are still ok. If you want to keep the current setup with the sw64 a second wire would have to be run from the sw64 for the second tuner of the 622 and a third wire should you move the 501.