Recommend online dealers


Being that I am in the market for a new amp (I have an old Adcom 555 that is starting to show its age), how cooperative are any of the online retailers with regard to matching amps with speakers, existing preamp, etc.  How good is Music Direct if one wants to return equipment within the 60 days?  Any suggestions?
udog
John Rutan is the best there is. Period.
Whether you buy from him or not, he will give you the best information you can get.
PM him (audioconnection) or call him- His website is Audio Connection in Verona, NJ.
Bob
I buy used and have liked TMR. Good people and accurate descriptions of products. Just found a good deal at upscale that shipped today. I think it includes 90 day warranty. Nice website. 
I have bought many things from Music Direct and always had good luck in my dealings with them. I have also visited their store in person several times. Crutchfield and Audio Advisor also are good.  Underwood HIFI also offers 30 days return on most things I believe. Walter at Underwood is a straight up no BS kinda guy who offers great products at low prices!