I didn't know they had a hydraulic clutch, my skyline did and I much prefered it to my cable clutch however the cable gives a bit more feel.
I believe that Valeo clutches are american from what I have heard and they are quite good.
When i got my clutch kit and removed the old i dicovered the bearing and the plate were different and i was 2 hours drive from the supplier! With no car ! What a bitch, my mates had to drive the correct parts to me.
Still event a H/d clutch is a real bitch to get off the line with unless you drop it, its either in or it is out no inbetween.