re: Poker & Suited Flops!
This is a call you need to base on information you've collected so far. If none is available then it's a sure fold. But if you're in the late position and you know your opponents you can decide what to do.
A rule I like to enforce on myself in this type of situation is "If holding high card of the same suit and there are less than 2 opponents still playing, call and hope for a 4th. Otherwise fold."
I don't have a huge hand sample to prove this rule but I never feel like I made the wrong call lose/win.