🚀 go-pugleaf

I'm looking for software that supports my personal logbook system. While my
current system (big lab notebooks) works well for documentation, it's horrible
for retrieval. 

I doodle a lot in my logbooks -- lots of text, but also lots of
illustrations and equations, and circling text, margin notes, etc. I'd
like to preserve as much of that kind of freedom as possible, but add
the capability of *text search* to facilitate retrieval.

The closest I've seen so far to what I want is a good word processor
with a good draw program. But the cutting and pasting is not seamless
enough; I can't overlap the draw section with the text section; and I
can't draw sketches (don't ask me to sketch with a mouse!).

Got one suggestion for MathCad. Anybody got any ideas? Thanks.

--mikey 
P.S. Is this a good place to post stuff like this?