My weakest link??

I'm getting the upgrade bug and would like your comments on my system's "weakest link." Small carpeted listening room - 11x12x8 with a padded wall behind the speakers and bookcase on the opposite wall. Linn Ikemi CD on vibrapods, Onkyo T9090II tuner, Plinius 8150 integrated, Tyler Reference Monitors on sand-filled Soliloquy stands, Quadraspire rack, HT Truthlink ICs, HT Pro-9 speaker cables, Shunyata Black Mamba PC on amp and JPS Labs digital cable on CD. Two dedicated circuits with Albert Porter Hubbell cryoed outlets and 10 gauge THHN wire.

Any comments/suggestions would be greatly appreciated.
Joel