humidity, truss, setup etc.

Gang,

having issues with my basses (Fender MIJ and 5 string EBMM Bongo fretless) and hoping someone has some suggestions.

been working on my solo recording project and since I'm primarily a bassist, I spend much more time on the other instruments when tracking. often, the guide/scratch track that I lay down for bass is good enough.

back in May, I took my two basses to my local tech, had them completely setup with new strings, intonation, etc. laid down a few bass tracks then spent almost two months cutting guitars, vox etc.

few days back I go back to do some more bass and both are pretty much shot -- string buzz, necks, the whole shebang. I can only imagine the two straight months of 90% humidity had something to do with it.

What are my options? I'm *this close* to just biting the bullet and learning how to do the setup, intonation, truss adjustment etc myself, but given that my time is at a premium (and I'm notoriously lazy), I'd rather not spend time futzing with my gear and more time recording. but spending $40/bass every time I need my basses ready to play... I just don't have the cash.

Is there something I can do to mitigate the effects of humidity? I never put my basses in their case; they're always on my stand, ready to play. would storing them in their case help, even a little?

Should I quit being a pansy and learn to do my own setup? Buy a dehumidifier? Are there replacement trusses that can alleviate this?

Thanks!