I just ordered the family Christmas present from Bulk Reef Supply. We wanted to have RO water to drink, ice cubes etc, and I wanted to stop using tap water for my top-offs to help reign in my tank and hopefully avoid cyano outbreaks. I got their 5 stage that has an outlet prior to the DI stage that is intended to use for drinking. I got their little "flush" kit as well as the electronic, 2 input TDS meter. My Alk is 13 out of the tap right now, so this should make a difference.
And while I was there, getting free shipping, I couldn't help but throw some of the dry "live rock" in the cart. Nothing agianst LBTR - but I'd spend more in gas going to get some than I spent on this, so... no guilt. If I make the big tank switch it'll be worth a trip to the desert for sand and LBTR.
I shopped Air,Water,Ice but BRS seemed to be about the same and had their accessories easier to find. I even looked at Lowes (spendy!) but I figure BRS is stable so I can continue to get media for maintenance in the future.