How would you spend my next $5K?

How would you spend my next $5K?

Here is my current wishlist and system.  Where would you put you/my next $5K? I find nothing deficient in my system.  However, in my experience the right upgrade or tweak can bring surprising.  

What would you do?

1. Amp - Upgrade current Transparent Reference PC 

2. Upgrade legacy Syn Res Element Copper RCA

3. Upgrade Wireworld Gold and Platinum BNCs to WAVE BNCs (or just one pair?)

4. Tannoy Super tweeters

5. External LPS for M Scaler (DAVE SJ LPSU rocks!)

6. Second sub

7. Decent starter analog rig.  

This is my current setup-

Tannoy Kensingtons 

Single REL S/812 

Pathos InPol Heritage MK2 integrated

Innuos Zenith MK3 - PhNET - PhUSB

CHORD DAVE/HMS

San Jacobs DC4ARC LPSU

Transparent PowerIsolator

OPTO Galvanic isolation 

Mostly Transparent cables