Fraps has one (but that has a huge watermark all over it), not sure if there's a microphone option (I always record that seperately).
Camtasia, you can get a free trial of that, although I don't really like it.
Then there are several other game capture software that I've never really used. You can always record your mic seperately with voice recording programs. Here's a list I once found online with game-recording software.
Mirillis Action!
Quobi – Game Recorder
Fraps (free/paid)
ZDSoft Screen Recorder
Camtasia Studio
LiteCam 3
WM Capture
CamStudio (its free)
Bandicam
E.M. Free Game Capture
D3DGear
Snagit
ACA Capture Pro
Sonne Screen Video Capture
Easy Screen Capture Video
Replay Capture Suite
Growler Guncam
Playclaw
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Feel free to let me know which one you used and what you thought of it..