Sooo many great points covered there!
I'll have to agree, from my limited attempts at it, mic'ing a bass cab well is a pain in the arse! Especially if your DI-ing it too.
And ill have to agree with the bass not being too bassy part too, ive also made that mistake when recording before
Also, your pointing out to use emulation? Definatly! a pod or what-not tho? I'd disagree there, if you can get your hands on GuitarRig2 or even better the Ampeg SVX VST, then your in buisness!