I'm loving the strings + drums suggestions of yours. Great stuff.
The Lyriel song was also very good; it reminded me of the first Nightwish album quite a lot (with more folkyness). Do you like much Nightwish?
The Tycho song is the kind of thing I like to listen to whilst pondering life's many avenues - or something similar. Very chilled and melancholy. Reminds me a bit of this: http://www.youtube.com/watch?v=hmWuL9SKVtI
Do you like Tool? I've been playing Pokémon on my old Game Boy recently so I've been in a bit of an 8-bit mood, heh.