I know what you mean. Oddly, I never had a turntable, but I had tons of cassettes. I had the huge carrying case for them, and my friends and I would load up and go to each other's house and listen. I know what you mean about the mixtape of instrumentals. Sadly, I also know about losing a great collection. When I was 17, I totaled my car, and left my big case full of tapes in the car for a day or two. When I went to the shop to re-claim my stereo equipment and tapes, they had all been stolen out of the car. I was incredibly ticked off, but of course, they had the "not responsible for items left in vehicles" sign. I think that sucker had 150 or so tapes in it.
Oh yeah, the Nuge song was actually called Scottish Tea. Typo there.
Some more ideas:
Eric Johnson - Cliffs of Dover
And, from way out in left field - Trans Siberian Orchestra, Wizards in Winter. Man, I love that song. Yeah, not the usual rock band, but I really like that song.
Oh yeah, forgot one I was going to mention: Led Zeppelin - White Summer/Black Mountain Side. Jimmy Page is unbelievable on this one. Wow. And Moby Dick is cool, as well.