Speakers for McIntosh 60's

I was recently give two McIntosh 60's. I am very excited, as I have long read about the warmth of tube equipment. I don't know what sort of speakers I should mate them with though. My preference (in my price range) is for 600 series B&W (602 or 603)but I have read that they are power hungry and would be under powered with the B&W's. Does anyone out there know of a set of speakers that would mate well? I appreciate the help!

used mine with KT-88tubes and a pair of Spica TC-50's
Pair of mc-60....60 watts per ch.

Go for the small Proac..tube friendly.