Oh yeah, the amp. Rabbit recommended a very good lower powered amp the CM7778. There can be too many problems with higher powered amps like the CM 7777 like noise, and overpowering the tuner. An amp can be always be added later if needed.
If you decide to now you could definitely add an amp, especially with long cable runs and multiple TV's.
As I said earlier, I like the RCA PREAMP! because I can unplug it and the signal still makes it through. so, I if I feel there is a problem, I can just unplug the wall wart and recheck.
http://www.solidsignal.com/pview.asp...u=044476071669
Televes claims to have a multiple level self adjusting amp, I don't know of anyone using it though:
http://www.solidsignal.com/pview.asp?p=536040-tel2162