Well, I would recommend firstly Blue Planet (Pretty much everyone's default around here) and Derelict. If you're willing to try something that's not related to FreeSpace in any way and are okay with an anime style mod, I would also try Wings of Dawn.
Oh! I had another question. About Marauder, since it and some song from FS2 (name escapes my head) have essentially the same battle track, are you going to reuse it for your music table?