The Next Step - what would you do?

Dear Audiogoners,

i'm sitting here listening to my setup, and realising my last thread has lost relevance.

http://forum.audiogon.com/cgi-bin/fr.pl?cspkr&1260210396&read&keyw&zzthiel=cs0=5

i have a choice to make now, after about 15 years of slow, consistent upgrading. i need to take my system to the next level. i'm sure we've all been there at one point or another. so my current system is:

Pass Labs Aleph 5
Pass Labs D1
CEC CD2100 [running Supra AES/EBU]
Thiel CS 0.5
MIT MH-750 speaker leads
budget XLR leads otherwise

so i see the choices as follows:
1. get an amp with more current, and bigger thiel speakers
2. move to bigger, more sensitive speakers [spendor SP100, big proacs]
3. get a new girlfriend

all perfectly viable choices, but i'm sure both 1. or 2. would be less expensive. i've run the gamut of musical styles, but as i get older, and my hifi becomes more resolving, i find myself drawn to recordings of un-amplified instruments, such as old jazz recordings. still, i like a little thump now and then, any system should be reasonably flexible.

So, Audiogoners, what would YOU do, and why??

all the best!
David