Sorry guys....
I should have posted the information I sent to Darren for all to see. My bad.
When I bought my digital read out, I looked all over for a dealer. Mike at candomachinery.com really helped me out a lot. He went above and beyond. I think I damaged my x-axis reader during my move, and I lost my receipt--which I never do, but it went MIA on me. I called Mike because it was under warranty, but I was afraid he was going to pull the "no receipt, no warranty" bullshit on me. Instead, he e-mailed me a copy of my receipt, gave his contact in Shaumburg that repairs these things (Milton at Heindenham--probably not spelled right), and he put me into contact with one of his employees before so doing to try and trouble shoot the problem over the phone. I sent the reader in and they fixed it free of charge. That level of service impressed me. Mike is the guy that can help with advice on how to get DRO's on these different machines. I know because I have spoken with a lot of people (before running into Mike) that didn't know anything about the product they sell....let alone how to install one.
Installing one of these DRO's has been difficult for me because I'm pretty new at this stuff, but if I can do it, I'm sure you can too.
I also told Darren that Rutland Tool had Accu rite DRO's on sale for 495 bucks which is half of what I paid. It also has the backlash adjustment so it really shouldn't matter how loose your table is. I'm very happy with it.
Best of luck.