talking of Beatle guitars, i think John Lennon's black Rickenbacker does it for me.
Rickenbacker bass as played by Chris Squier of Yes.
John Lennon (again) his blond Gibson. almost bought one, didn't like the arm, too flat!
Status Quo and their Telecasters (partly the reason why I've got one)
Brian May's home made guitar, which is now available over the counter! not his actual one but copies...DUH
Mark Knopfler's guitar (don't know the maker but I think it's a luthier from New York?
Paul's Hofner bass, I almost bought one from the Beatles museum on Liverpool dock, lefty too!
Steve Howe and his pedal steel.