Goner's your Top Five Picks for Preamps & Amps

Power amps:
Any of the Lamms are good.
Halcro is very good (high resolution).
Tenor audio has some good tube amps.
ASL Hurricane is a must audition (affordable).
spectron Musician II (affordable digital).
Van Alstine (affordable hybrid).

Pre:
Hovland HP100
Aesthetix castillo
First Sound
CTC Blowtorch
SCE HRS to Placette Passive (affordable)