I'd get the v800 over the V8000, as I said there is no way to make an RCA connector be a true 75 ohm impedence, whereas the BNC connector is perfect.
As far as PAL players go, if you intend actually watching movies on it as well, get a 925, it has the RF output (the 2950 does not and you have to mod the laserdisc player internally to get it to do so).
If capture is all you are interested in then get the industrial V4300D.