Psychic Warrior is great fun. The only real problem with it is that there's hardly any reason not to PrC out, and take the Slayer PrC for 10 levels of full BAB (and a couple nifty class features, and more skill points) at the cost of 1 Manifester Level.

Without Tome of Battle, my favorite melee build is Ranger 1 / Psychic Warrior 4 / Slayer X for sure.