What should I expect?

I currently have 6 D11 standard def receivers in my home. I have a 3 LNB dish. All the receivers are leased, but I get one of the lease fees taken off each month due to it being the "primary receiver". I have the Choice package plus Showtime. All 6 of my TVs are standard def, but I plan on buying a 26" or 32" HD LCD sometime in the next two weeks to replace the TV in my bedroom. Anyway, I read about existing customers in good standing being able to squeeze out some free/reduced cost equipment and programming discounts from DirecTV's customer retention. I called, threatened (nicely) to switch to my local cable company (something I would never do in a million years, as the local cable company is very small and very expensive), and was given what I thought was a decent deal. I'm getting two SD DVRs for $50 plus $20 "handling fee". But, they're also giving me a $10 credit on my bill for the next 6 months so it's basically getting two DVRs for $10. I didn't elect to upgrade my programming package to Plus DVR ($63), so I'm going to continue to pay $53 for Choice in addition to the $5.99 DVR service fee. I'd love to have HD service on the new TV I'm going to get and I'm sure I would have been able to squeeze an HD receiver out of the CSR, but my bill is already high enough and I can't afford the $10 HD access fee right at this moment. I live in Central PA (Union County, specifically, for people who know the area) which is on the far western edge of the Scranton/Wilkes Barre market. I doubt I'm going to be able to get any digital signals out here (AntennaWeb says to not even bother as I'll I get out here is analog and the other OTA signal testing site--I forgot the URL--says I may be able to get my OTA digital channels if I stick a high power antenna on the roof that would probably run me $100), so it's looking like OTA high def is out of the question. If I was going to spend $100 on an antenna, why not just pay the HD access fee with DirecTV? Anyway, to the point, I'm wondering how my installation (on August 8th) is going to work.
*What DVR will I get? I've heard horror stories about the R15 so I'm hoping I won't get that. Is the R16 in regular circulation with installers yet? My market isn't one of the select few that get SD locals in MPEG-4, but will I still be able to get R22s?
*If I get lucky and snag an R22, will I be able to keep the same unit and use it as an HD DVR when I am able to pay the HD access fee in the future? Or will I need to order a new unit?
*Will I be able to watch my standard def content in widescreen on the HDTV (even if it is slightly stretched)? That would be great if I could.
*If I manage to get an R16 or R22 (both are have SWM), will the installer still have to run additional lines? Do installers carry SWM switches with them so they don't have to do this? A more important question, is my 3 LNB dish able to work with the SWM switches (I don't think it is, but you guys probably know much better)? Which of these scenarios should I expect on installation day:
-SWM switch added to existing 3 LNB dish. No additional lines.
-New 5 LNB dish installed with SWM switch. No additional lines.
-No SWM involved at all. Existing 3 LNB dish kept. Additional lines added to run to the two rooms w/ DVR.
I'm really hoping it's not the third.
I know I gave a lot of information, but I wanted to make my situation clear. You guys seem to be experts on dealing with DirecTV and its equipment. I know I'm probably labeled some sort of freak for not wanting HD, but the $120 a year just doesn't seem practical if I'm only going to have one HDTV out of 6. Thanks so much in advance for helping me make sense of all of this.