rigid is ace..
It's actually easier than with front suspension IMO.. you get instant feedback from the trail so you know exactly when to make adjustments.. and it demands that you try and flow more with the terrain.. and relax and let the bike do it's own thing to a certain extent..
OK.. maybe easier is the wrong word cos you can just blam yer way through stuff like a rampaging idiot rhino with the bouncy fork.. but on rigid I definitely feel more involved with the ride and more a part of the bike..
you have to watch what you're dong and manual and hop a fair bit more and occasionally pull the front back on line or out of trouble but that's part of the enjoyment IMO.
I love 'em and there's not alot of trails that I wouldn't attempt rigid.. (oooh Errr)