Thanks for the suggestions, your suggestions I see in 2 categories mostly, half I already have and enjoy (not top of the list though) and the rest I've tried to get into but find way too HEAVY.. I don't know why, but I cannot tolerate the heavy metal stuff at all, it gives me a headache :( (though I love Black Rose Immortal - Opeth)
Amplifier - Amplifier / Insider - will check it out
Anathema - All albums are great - I have listened to them before but found it too heavy?
Battles - A little obscure and different, but if you enjoy psychedelic rock, you probably have an open mind. - Will check them out
Dream Theater - Scenes From A Memory / Six Degrees of Inner Turbulence / Images & Words - Have these - I prefer ACOS and Octavarium (the songs) by DT
The Flaming Lips - Yoshimi battles the pink robots / Embryonic / At War With the Machines - Will check them out
Harmonium - Si On Avait Besoin D'Une Cinqième Saison - Will check them out
King Crimson - Any album - Will check them out
Marillion - Misplaced Childhood - Will check them out
The Mars Volta - All albums - Will check them out
Muse - All albums - Love them a lot :) just not as much as before.. were my favorite earlier
Opeth - All albums (Progressive Death Metal, so beware it is very heavy. Porcupine Tree have worked with Opeth in the past.) - Again too heavy as you say, I do love selective songs though
Pain of Salvation - Will check them out
The Pineapple Thief - What We Have Sown / Tightly Unwound - Will check them out
Porcupine Tree - the rest of the discography. - Currently checking out
Radiohead - All albums - Again, love them and they were top of the list for me.. just not anymore
Riverside - Second Life Syndrome (my fav album by them, others are great as well) - I find it too heavy
Rush - EVERYTHING! - Will check them out
Sigur Ros - Agaetis Byrjun (one of my favourite albums) - Ah yes I love Sigur Ros, just dont listen to them that much
Steven Wilson - Insurgentes - Will check them out
Tool - Lateralus / 10,000 Days / Aenima - Found it too heavy again? hmm..
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Basically I just can't get into the heavy, more metallish stuff.. it sounds good but it gives me an headache in less than a minute and then it has to go ;)
Battles sounds right up my alley though, will check them out now!
Again, thanks for the suggestions, keep them coming :)