While I don't claim to have a godly amount of audio product knowledge, from what I do know, the only all-analog multi-channel preamp that I know of is the RE Designs
SCPA 1. Audioholics has a nice review of it
here. I don't know of an integrated that would do what you want (world isn't perfect
). As far as an amp goes, I'm not sure what you're looking for. If you're into the tube thing, then perhaps that amp your friend suggested would be great. You might want to look into the used market, like at Audiogon or something. Rotel, B&K, Bryston, all good options.
Outlaw Audio is another option. I believe ATI makes some of Outlaw's amps (I know they make the monster 7-channel one).
The problem is, most of the time when people go into surround sound, they do it for movies. Also, they often want to take advantage of some processing to set up their multi-channel system. Good luck.