The moment to be most fearful is when everybody else is blissfully unconcerned. That bit of investing wisdom comes courtesy of Warren Buffett, and by that standard, as stock indexes set new records and once-traumatized investors pile back into equities, we should be very, very cautious. The market is seemingly overdue for a breather (if not a full-fledged swoon), so it's the perfect time to take advantage of insights from investors who have thrived in good times and bad. To that end, we've assembled stock ideas from an eclectic assortment of top mutual fund managers. They've chosen low-priced values and roaring fast-growers; small fry and behemoths; U.S. companies and distant players. The one commonality: the superior long-term records of the people selecting the stocks. Because nothing beats experience, especially when times are good.