looked closely at has an external microphone jack. My Sony TRV17 has one, and the small Canons I've used have one. I suppose there might be some cameras which lack this, but I think they're in the minority.
Did you mean an XLR microphone perhaps? Those are very unusual, but adaptors are available.
I am looking for a camcorder to record such things as recitals. Thought I had narrowed my search down to a Sony DCR-HC32 or DCR-HC42. Called Sony and the person I talked to said that they made nothing but a Hi-8 that has an external jack. I've already got a Hi-8. So I'm starting over. My fear is getting camera noise when I record. (Used a Canon without an external jack and heard a lot of hum.)