Simple PVR

Hi everybody. I know that exists now a device called PVR (Portable
Video Recorder) and I know that a lot of you know that device; well, I
know that there are from flash or sd memory based (relatively
cheaper) to hard disk based (in general expensive), both come with a
LCD screen and another characteristics... Then my question is ¿ Does
exist any simple PVR available in market?, I just want of that PVR,
if exists, that has a button to record video and another to stop
recording -and maybe another to pause recording- a digital output (USB
miniport), an input of video, an output of video and an optional dc
power in. Why I say to you this? only to you figure it what I mean for
"simple pvr" (although what really becomes it into simple is that it
has no screen and less buttons, but I guess if It hasn´t screen
becomes a lot cheaper too)
Well ¿do you know a device like that? ¿where I can to find It? (a web
page) BYE!!

 

yes, A digital camera with movie mode..