I quite like progressive metal.
Seltzer's list is excellent.
I would especially recommend Pain of Salvation, Spiral Architect, Devin Townsend, Spastic Ink(these guys are crazy) & Maudlin of the Well. Actually, F*ck it and listen to them all :D

Anyways, just a few more suggestions-

Fates Warning - A Pleasant Shade of Grey
Choosing between this and Parallels is so damn annoying. Epic and awesome.

Psychotic Waltz - A Social Grace
Weird, obscure, complex stuff. The vocals add even more to the weirdness. Definitely something i don't come across very often.

Shadow Gallery - Tyranny
An amazing concept album with superb melodies, mindblowing guitar work(and i really mean it) backed with excellent keyboards. Sounds even a little bit power-metallish at times, but tbh, I think that's a good thing here.

I have to say I consider Kamelot the kings of progmetal, but I also love Shadow Gallery, Threshold, Silent Edge, Epica, Adagio, Fairyland, Labyrinth, LAcuna Coil and a hundred others BUT I hate Pain of Salvation --- sorry, I just cannot get into them.
PS I hate "death vocals", not that that refers back to PoS, but it does leave both Haggard and Opeth out for me...

Stick to your Guns.

Dream Theater from Images and Words to Six Degrees is the definition of prog metal. Most prog metal bands are just trying to replicate what Dream Theater did.

Pain of Salvation, however, is amazing. One of the most creative and emotion-inducing bands I've ever heard. I wouldn't even label them as prog metal, they're completely their own thing.

Dream Theatre are not well liked on these forums. It could be because they are boring as fuck but that's a narrow minded view...























































although I do agree.

Strange that you mention the Psychotic Waltz album. I recieved that in the post this morning from my friend in Germany.

Add 'Anacrusis' to this list.

Well, It's definitely damn weird. You might even dislike it on the first listen.

Right on! Emotions and Progressive is how I would describe them as well. The vocals more or less make or break the band :cool:

I love progressive metal. One of favorite bands of all time is Dream Theater, I also enjoy Queensryche and Pain of Salvation.

Would recent Porcupine Tree be considered progressive metal?

Some of it, though they're more based in simply rock.

Opeth is the only prog metal band that I'm into really.