decent RF universal control system


So I have my Pioneer vsx 21 elite up and running with my cable box and dvd player and 52 inch Samsung. Great sound and vision. What is a decent universal controller with RF? I guess the term basically means that the signal carries throgh walls which is what I need. A friend suggested an IR repeater, whatever that is.
blowfin
There are lot's of Haters on the Harmony 900 on CNET. I am surprised, I have not used one yet, but if the 890 is still available that's a great remote. I love mine, I use it for the bedroom and game room. I have a One for my listening area.
Just to be clear, the reviews on CNET of the Harmony 900 seemed very positive except for the inability to program sequential macros. This was a major disappointment (and a curious omission on Harmony's part at this price point) for a lot of people, but if it's not an important feature for Blowfin the 900 could still be a great choice. Didn't want to leave the impression that the 900 got an overall bad review because it certainly didn't. I still question whether it's worth 3x the price of the Universal RFS200, but that's an individual decision.