Vishnu (Moonguy) got the best deal I ever hear of. I bought mine many "moons ago" (ya like that do ya Vishnu!) from what is now, Purelyh2o.com - also a sponsor here. Buying it is one thing, what set's Purelyh2o apart from the others is certainly the customer service!!!!! Be sure to get an RO/DI, not just an RO system. If you're married, get a home drinking kit so you can justify it with your wife. I got mine before my wife and I met.