Aw man you're missing out! I'd recommend heading to ocremix.org right now! Some really good songs to start with are Antimatter (Magus), Atonement (Magus/Frog), decay of Hope (Magus), At the End of All Things (EoT, Millenial Fair, some Zelda song), Another Fair (Millenial Fair), Requiem for a Green Revolution (Green Memories, World Revolution), But The Future Refused to Change (a lot), Forever (Last day of the World (It has SINGING)), Revival day Impoteus (Last day of the World), Subterranean Opus (Underground Sewer), Knights Come Marching Home (Frog, FFIX), Sacratus Bellator (Frog), Corridor of Time Warp Mix, Corrupter of Time, dreamofZeal, Island of Zeal, Zeal Love (all Corridors of Time, but Zeal Love, Island of Zeal, and Corrupter of Time are the BEST), Tears for a Girl (Schala), Aqueous Transgression (Ocean Palace), Wave Breaker (Ocean Palace), the whole CHRONOTORIOUS album, and from the Compendium's remix list: A Timeline Eliminated, Sewer Trippin, Sewer Wonderland, The depths of Isolation, anything and everything by dhsu, mustin, mazedude, and zyko, and anything else that looks good to you.
That's just what I can remember off the top of my head, I know I left a lot out.