Yeah, I've been tweaking it every day and half. What's 44 hours vs. 48 hours really? So anyway, I've changed many-a-setting with SQL and it's gotten a lot better.
I tweaked it again this afternoon; I'll report back with those results the next day or two.
But, RAM + PHP CACHING + SQL TWEAKS = 0.36 avg load.
ISPC3 on Debian! It's great!