Porcupine Tree release that equals Lightbulb Sun?

It is.

Anything else like Voyage 34?

Hey Synthfreak - I would say that Voyage 34 is one of my favorite of their recordings. It is an interesting concept album and I like the pace and creativity of the first two parts (I and II) especially.

A few other of my favorites would include: Up The Downstair, Signify, Sky Moves Sideways, Deadwing, Stars Die, and Lightbulb Sun. But I seem to like 85-90% of their work. In fact, they have so much out there that I've only heard maybe 40-60% percent of their material - yay!

Anyone else really like PT's early release, Yellow Hedgerow Dreamscape?

I just picked up an album by a Polish group that sounds very similar to PT. Any fans should probably check them out:
"Riverside - Rapid Eye Movement".

Then there's also PT's backup band at last year's concerts: "3".

Enjoy,
Bob

Riverside is right up there with the best I think.