T67
You can see that most epople are on your side here. The main thing you need to think about is your financial committments. An FI job will just pay the rent and keep you in the odd bottle of blue nun.
That is of course if you can find an FI position. I recently popped into the school i used to work for and the CFI told me he has no problem finding instructors.
It is however really interresting work and does wonders for your flying ability. On a more romantic note, its a great days work in the summer just hanging around (working your nuts, or tits if female) a flying school.
After a year out of work I did my FI rating and worked for two years until i got a FO job. I am in no doubt it helped me get an interview and had loads to talk about at that interview. I would still now do some instructing if there were any schools near me as its a great skill to have.
I know how you feel and hope you find some aviation work soon.