Alright, so I actually discovered Porcupine Tree a long time ago on NS, by searchbarring for new music and looking through threads and checking out some of the recommended bands.
Now, I've been listening to Porcupine Tree for several years now, and I rarely meet anyone who has heard of them, which is really unfortunate because I believe they are one of the most talented and creative groups today, while still making spectacularly beautiful sounding music.
Here are a couple samples for you to enjoy, not sure how to embed, maybe a video will pop up, maybe not:
Now, if you download any of their albums, I urge you to sit down, and let it play. Sure, you can cook some food, eat lunch, play some skate 2, do some homework, browse NS or whatever, but let their songs play through. A lot of them can be a little slow to start, but it is well worth listening to the entire album.