Sam,
i started with a 416, then heard a schoeps cmc6mk41. blown away, the most natural sounding microphone. buy one and you will love it. if you don't i'll buy it off you;).
the MKH 50 or MKH 8050 could also be a good way to go, they might be closer in sound to your 60 but if you get the schopes you'll still be happy.